Consequently, we must set the ISO to 800 when shooting at 1/500 shutter speed and f/5.6 aperture to preserve adequate exposure.
What does the 500 shutter speed rule mean?It suggests setting your shutter speed to 500 Equivalent Focal Length. The 500 rule therefore advises using a shutter speed of 500 20 = 25 seconds if your full-frame equivalent focal length is 20mm.
By increasing the shutter speed from 1/60 to 1/500, it is necessary to account for the variation in light.
The difference in exposure between 1/60 and 1/500 is approximately 3 stops (1/60 → 1/125 → 1/250 → 1/500).
Hence, we must also raise the ISO by three stops in order to account for this difference in shutter speed.
Starting with ISO 100, increasing the ISO by 3 stops will give us:
ISO 100 → ISO 200 (1 stop) → ISO 400 (2 stops) → ISO 800 (3 stops)
Consequently, we must set the ISO to 800 when shooting at 1/500 shutter speed and f/5.6 aperture to preserve adequate exposure.
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how are thew avelength, freequency, and speed of a wave realted? how do they depend on the medium through which the wave is passing and the type of wave
Wavelength, frequency, and speed of wave are related by the following formula:v = fλ
where v is the speed of the wave, f is the frequency of the wave, and λ is the wavelength of the wave.
In terms of the medium through which the wave is passing, the speed of the wave depends on the properties of the medium. The speed of a wave traveling through a medium depends on the medium's elasticity and density. The type of wave, such as sound or light, will also determine the speed of the wave.In terms of wavelength and frequency, they are inversely proportional. This means that if the wavelength increases, the frequency decreases, and if the wavelength decreases, the frequency increases. This is expressed by the formula:f = v/λSo, as the speed of the wave increases, the wavelength increases, and the frequency decreases. Conversely, as the speed of the wave decreases, the wavelength decreases, and the frequency increases.
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2. how would an atmosphere of helium effect the pitch of an organ pipe? how would it effect the pitch of a turning fork? explain. g
An atmosphere of helium would have a large effect on the pitch of instruments. For an organ pipe, helium would cause the pitch of the instrument's sound to be higher than normal.
This is because helium is a lighter gas than air, and therefore has a higher speed of sound through it. This increases the frequency of the sound waves, resulting in a higher pitch. For a tuning fork, helium would also cause the pitch of the sound to be higher than normal, however, the effect would be less significant.
This is because the frequency of the sound waves produced by a tuning fork is determined more by the size and shape of the fork, rather than the gas that it is in. Therefore, while the pitch of a tuning fork would be higher in a helium atmosphere, the effect would not be as great as with an organ pipe.
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kim holds a 2.0 kg air rifle loosely and fires a bullet of mass 1.0 g. the muzzle velocity of the bullet is 150 m/s. calculate the recoil speed of the rifle.
The recoil speed of the rifle is 0.075 m/s in the opposite direction to the direction of the bullet.
To calculate the recoil speed of the rifle, we can use the conservation of momentum principle. According to this principle, the total momentum of the system (bullet + rifle) is conserved before and after the firing of the bullet.
Initially, the total momentum of the system is zero because the rifle and bullet are at rest. After firing the bullet, the total momentum of the system is given by:
m1v1 + m2v2 = 0
where m1 and v1 are the mass and velocity of the bullet, and m2 and v2 are the mass and recoil velocity of the rifle, respectively.
Substituting the given values, we get:
(0.001 kg)(150 m/s) + (2.0 kg)(v2) = 0
Solving for v2, we get:
v2 = -(0.001 kg)(150 m/s) / (2.0 kg)
v2 = -0.075 m/s
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explain why adding charge to a bee causes hairs on the bee's body to bend more in response to a field.
Insects use their hair-like mechanoreceptors to detect electrical fields around them. This electrical charge causes the hairs to move and bend towards the source of the field.
Explanation:
Bee hair is also sensitive to static electricity. As bees collect pollen, they become negatively charged, causing the pollen to become positively charged. This charge difference makes it easier for pollen to stick to the bees' hairy bodies and legs.
Therefore, when a bee is charged with static electricity, it becomes easier for its hairs to detect the electrical fields around it. As a result, the hairs on the bee's body will bend more in response to the electrical field.
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The bob of a pendulum is released from a horizontal position. If the length of the pendulum is 1.5m, what is the speed with which the bob arrives at the lowermost point, given that it dissipated 5% of its initial energy against air resistance ?
The speed at which the bob reaches the lowest point is 3.54 m/s
When the bob is released from the horizontal position, its potential energy is maximum, and kinetic energy is zero. So, the initial energy of the pendulum is the potential energy it has when it is released. The formula to calculate the potential energy of the pendulum is given by: PE = mgh
Where m is the mass of the bob, g is the acceleration due to gravity, and h is the height of the bob above the lowermost point. At the lowermost point, the potential energy is zero, and the kinetic energy is maximum.
Therefore, the kinetic energy at the lowermost point is equal to the initial potential energy of the pendulum. The formula for kinetic energy is given by:
KE = (1/2)mv² Where m is the mass of the bob, and v is the velocity of the bob at the lowermost point. Since energy is conserved, the initial potential energy of the pendulum is equal to the final kinetic energy of the bob. However, some of the initial energy is dissipated against air resistance. So, we can write the equation as:
PE - 5% PE = KE,
mgh - 0.05mgh = (1/2)mv²,
v² = 2gh(1 - 0.05),
v² = 2 × 9.8 × 1.5 × 0.95,
v = 3.54 m/s
Therefore, the speed with which the bob arrives at the lowermost point is 3.54 m/s.
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suppose you have an atwood machine with two different masses m and m. what are the external forces acting on this system?
The external forces acting on this system are: gravity and the tension in the string.
An Atwood machine is a system consisting of two masses, m, and m, connected by a string that passes over a pulley. In this system, the external forces are gravity and the tension in the string. Gravity pulls both masses downward, while the tension in the string acts in opposite directions on the two masses, pulling the heavier one down and the lighter one up.
The tension in the string is determined by the masses m and m and the acceleration of the system. If m is the heavier mass and m is the lighter mass, the tension in the string will be greater than if both masses had the same weight. This is because the tension must balance the gravitational forces on the two masses. The greater the mass, the greater the gravitational force, and the greater the tension in the string must be to balance it.
The acceleration of the system is determined by the masses, the tension in the string, and the amount of friction in the system. The greater the tension, the greater the acceleration, and the smaller the mass, the greater the acceleration. Friction acts against the acceleration, reducing the net acceleration of the system.
In summary, the external forces acting on an Atwood machine with two different masses m and m are gravity and the tension in the string. The tension in the string is determined by the masses and the acceleration of the system, while the acceleration is determined by the masses, the tension in the string, and the amount of friction in the system.
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over what locations on earth can a satellite be placed in a geostationary orbit? please give your reasoning, including an illustrative diagram.
Locations on earth can a satellite be placed in a geostationary orbit over the equator of the earth
The geostationary orbit is a circular orbit located above the earth's equator at a height of around 36,000 km or 22,000 miles. The satellite is always positioned in a fixed point in the sky from the earth. The satellite remains fixed in the sky above a particular location on the earth's surface.In other words, it has an orbital period equal to the rotation of the Earth on its axis. This type of orbit is used for communication, weather forecasting, and remote sensing because it allows the satellite to remain fixed in the same position above the earth.
As a result, they offer a stable platform for communication with the earth.The geostationary orbit has numerous benefits. For instance, it reduces the required power of communication equipment, ensuring that a small antenna can receive or transmit signals to a satellite with less power. It also allows for a full view of the earth's surface, thereby providing comprehensive coverage for communication, broadcasting, and other satellite applications. The diagram below shows a satellite placed in a geostationary orbit. Therefore, to place a satellite in a geostationary orbit, it must be placed over the equator of the earth.
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a portable cd player uses a current of 7.5 ma at a potential diference of 3.5 v. how much energy does the player use in 35 s?
A portable CD player uses 7.5mA of current at a potential difference of 3.5V. Since it is running for 35 seconds, the total energy consumed in that time is calculated by the product of potential difference, current and time consumed and it is solved as 918.75mJ.
The amount of energy used by the portable CD player can be calculated using the formula:
E = VIt
where E is the energy, V is the potential difference, I is the current and t is the time.
The portable CD player uses a current of 7.5 mA at a potential difference of 3.5 V.
Thus, the energy used by the player in 35 seconds can be calculated as follows:
[tex]E = VIt\\ = 3.5 V \times 7.5 mA \times35 s \\= 918.75 mJ[/tex]
Therefore, the portable CD player uses 918.75 mJ of energy in 35 seconds.
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A baseball collides with a baseball glove. Which equation is used to calculate the force the glove exerts on the ball during the collision?force = mass × velocity
force = weight × acceleration
force = weight × velocityforce = mass × acceleration
The equation used to calculate the force the glove exerts on the ball during the collision is force = mass × acceleration. This equation relates the force exerted on an object to its mass and the acceleration it experiences.
During the collision, the ball experiences a change in velocity, which corresponds to an acceleration. The force exerted by the glove on the ball is equal in magnitude but opposite in direction to the force exerted by the ball on the glove, as described by Newton's third law of motion.
The force exerted on the ball is what causes it to change direction and slow down, ultimately leading to it coming to a stop in the glove. It's important to note that while the velocity of the ball is involved in the collision, it is not directly used to calculate the force.
Instead, the mass and acceleration of the ball are used in conjunction with the force equation to determine the force exerted by the glove on the ball. This equation can also be used in other scenarios where an object experiences a force due to acceleration, such as a car accelerating or a person jumping.
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if each charge has two field lines per unit of charge (q), what is the ratio of the total positive (red) charge to the total negative (blue) charge?
The ratio of total positive charge (red) to total negative charge (blue) is 1:1. This is because for each unit of charge (q), there are two field lines, one for the positive charge and one for the negative charge.
What are field lines?Field lines are a visual tool used to represent the direction and strength of an electrical field. The direction of a field line shows the direction of the force that a positive test charge would experience if it were placed at that point in the field. Meanwhile, the density of the field lines indicates the strength of the electric field.
Since each charge has two field lines per unit of charge (q), it means that the total number of field lines is proportional to the total charge. If there are equal numbers of field lines coming from both the positive and negative charges, it means that the ratio of the total positive charge to the total negative charge is 1:1.
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a system releases 690 kj of heat and does 110 kj of work on the surroundings. part a what is the change in internal energy of the system?
A system releases 690 kj of heat and does 110 kj of work on the surroundings then part a what i the change in internal energy of the system -800 kJ.
The change in internal energy of the system can be calculated using the formula
ΔU = Q - W,
where ΔU is the change in internal energy, Q is the heat exchanged, and W is the work done.
In this case, the system releases 690 kJ of heat (Q = -690 kJ) and does 110 kJ of work on the surroundings (W = 110 kJ).
So, ΔU = -690 kJ - 110 kJ = -800 kJ.
The change in internal energy of the system is -800 kJ.
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a skydiver is descending towards the earth with her parachute open. the work done by the drag force from the air is
When a skydiver descends towards the earth with her parachute open, the work done by the drag force from the air is negative.
When a skydiver descends towards the earth with her parachute open, the drag force works in the opposite direction of the skydiver's motion, slowing her descent. The skydiver's motion is downward, whereas the drag force is upward. As a result, the angle between the drag force and the skydiver's motion is 180 degrees.
Because of the dot product, the work done by the drag force is negative.Work, which is a scalar quantity, is given by the following equation:
Work done = Force * Displacement * cos(θ)
where: θ is the angle between the applied force and the displacement vector. The work done is negative in this case because the angle between the applied force and the displacement is 180 degrees.
As a result, cos(180) is -1. This negative value results in the work done by the drag force from the air being negative.
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ay telescope mirrors are arranged in a way very similar to optical telescope mirrors. group of answer choices true false
Telescope mirrors are arranged in a way very similar to optical telescope mirrors is a True statement.
The Telescopes and optical telescope can also be used as
Telescopes: Telescopes, including optical telescopes, use mirrors or lenses to collect and focus light. Optical telescope: Optical telescope mirrors are usually curved in shape to reflect light from distant objects and form an image at the focal point.Similarly, other types of telescopes such as radio telescopes, infrared telescopes, and ultraviolet telescopes also use mirrors to collect and focus the corresponding wavelengths of light they are designed to detect.
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a 70.0-g arrow, fired at a speed of 115 m/s to the left, impacts a tree, which it penetrates to a depth of 12.2 cm before coming to a stop. assuming the force of friction exerted by the tree is constant, what are the magnitude and direction of the friction force acting on the arrow?
The magnitude of the friction force is 0.788 N and it is directed to the right.
The friction force acting on the arrow is equal to the force required to stop the arrow and is directed opposite the direction of motion.
The magnitude of the friction force is equal to the product of the mass of the arrow (70.0 g) and the deceleration of the arrow (11.2 cm/s^2).
When the arrow hits the tree, the friction force of the tree will slow down the arrow's motion. The magnitude of this friction force is equal to the product of the mass of the arrow (70.0 g) and the deceleration of the arrow (11.2 cm/s^2).
The direction of the friction force will be opposite to the direction of the arrow's motion.
Therefore, the magnitude of the friction force is 0.788 N and it is directed to the right. This is because the arrow was fired to the left and the friction force must be equal and opposite in order to bring the arrow to a stop.
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a semi-circular gate on an inclined wall is in contact with water. calculate the resultant force of the water on the gate
The resultant force of the water on the semi-circular gate on an inclined wall can be calculated using the equations of hydrostatics.
R = √([tex]F1^2 + F2^2 - 2*F1*F2*cos[/tex])α, where 'R' is the resultant force and 'α' is the angle of the wall.
First, determine the pressure of the water at any given point along the gate. To do this, multiply the density of the water, 'ρ', by the acceleration of gravity, 'g', and then the vertical height of the water relative to the gate, 'h', to get the pressure 'p':
p = ρ*g*h
Second, determine the force acting on the gate. This is done by multiplying the pressure with the area of the gate, 'A':
F = p*A
Finally, find the resultant force, 'R', by adding the forces together and taking into account the angle of the wall:
R = √([tex]F1^2 + F2^2 - 2*F1*F2*cos[/tex])α
where α is the angle of the wall.
By following these steps, you can calculate the resultant force of the water on the semi-circular gate on an inclined wall.
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2. car 1 has 2 times the mass of car 2, but only 0.3 as much kinetic energy. what is the ratio between the speeds of the two cars (vi/v2)? you must type your answer as a numerical value.
The ratio of the speeds of the two cars is approximately 0.387.
The kinetic energy of an object is given by the formula:
KE = 0.5 * m * v²
where KE is the kinetic energy, m is the mass, and v is the velocity of the object.
Let's denote the mass of car 2 as m, and the mass of car 1 as 2m (since car 1 has 2 times the mass of car 2).
We are told that the kinetic energy of car 1 is only 0.3 times that of car 2:
0.5 * (2m) * v1 = 0.3 * 0.5 * m * v2^2
Simplifying this equation, we get:
2 * v1² = 0.3 * v2²
Dividing both sides by v2², we get:
2 * (v1/v2)² = 0.3
Solving for the ratio of velocities, we get:
v1/v2 = [tex]\sqrt{(0.3/2) }[/tex]= 0.387
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what is the maximum speed with which a 1500 kg car can make a turn around a curve of a radius 20 m. on a level. road without sliding.
The maximum speed with which a 1500 kg car can make a turn around a curve of a radius 20 m. on a level road without sliding is approximately 0.823 m/s.
The maximum speed with which a 1500 kg car can make a turn around a curve of a radius 20 m. on a level road without sliding is determined by the maximum static friction force, Fsmax, that can be created between the car tires and the road surface. The formula for the static friction force is Fsmax = μsFn, where μs is the coefficient of static friction and Fn is the normal force acting on the car. The normal force can be calculated using Newton's Second Law, Fn = mv2/r, where m is the mass of the car, v is the speed, and r is the radius of the curve.
Therefore, the maximum speed with which the car can make the turn without sliding can be calculated as follows:
v2 = (μsm2)/(rFn) = (μs15002)/(20 * 1500 * 9.8) = 0.68 m/s2
v = √(0.68 m/s2) = 0.823 m/s
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which of the following is not an example of mechanical action? group of answer choices electrically charged beaters of the bells on the clavecin electrique digital sampling machines levers and hammers inside an acoustic piano rotors (tonewheels) of a telharmonium
Digital sampling machines are not an example of mechanical action.
What is mechanical action?
Mechanical action refers to the physical movement of mechanical components to produce a sound or perform a specific function. This can include a wide range of actions, such as the striking of hammers on strings in a piano, the rotation of tonewheels in a Hammond organ, or the movement of valves in a trumpet.
Mechanical action can also be found in other types of machinery and equipment, and tools such as engines, gears, and levers, where physical movement is used to perform a specific task or function.
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Which are true about Halogens? (please choose all that apply)
a) Reactive
b) Group 7A
c) Non-metals
d) Metals
e) Non-reactive
Answer:
the answer is a number
Explanation:
support me
A lamp in child's Halloween costume flashes based on an RC discharge of a capacitor through its resistance. The effective duration of the flash is 0.250 s, during which it produces an average 0.500 W from an average 3.00 V. A) What energy does it dissipate? B) How much charge moves through the lamp? C) Find capacitance. D) What is the resistance of the lamp?
A) the energy dissipated is 0.125 Joules. B) the charge that moves through the lamp is 0.0278 Coulombs. C) the capacitance is 0.0278 Farads. D) the resistance of the lamp is approximately 8.99 Ohms.
A) To find the energy dissipated, use the formula:
Energy = Power × Time
where Power = 0.500 W and Time = 0.250 s.
Energy = 0.500 W × 0.250 s = 0.125 J
So, the energy dissipated is 0.125 Joules.
B) To find the charge that moves through the lamp, use the formula:
Energy = (1/2) × Charge × Voltage^2
Rearrange the formula to solve for Charge:
Charge = (2 × Energy) / Voltage^2
Charge = (2 × 0.125 J) / (3.00 V)^2 = 0.0278 C
So, the charge that moves through the lamp is 0.0278 Coulombs.
C) To find the capacitance, use the formula:
Energy = (1/2) × Capacitance × Voltage^2
Rearrange the formula to solve for Capacitance:
Capacitance = (2 × Energy) / Voltage^2
Capacitance = (2 × 0.125 J) / (3.00 V)^2 = 0.0278 F
So, the capacitance is 0.0278 Farads.
D) To find the resistance of the lamp, use the RC time constant formula:
Time constant (τ) = Resistance × Capacitance
Since the effective duration of the flash is 0.250 s, we can assume it is approximately equal to the time constant (τ).
Rearrange the formula to solve for Resistance:
Resistance = Time constant / Capacitance
Resistance = 0.250 s / 0.0278 F = 8.99 Ω
So, the resistance of the lamp is approximately 8.99 Ohms.
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The trachea is found ______ to the esophagus; connects the larynx to primary bronchi; inferiorly the trachea divides into right and left ______ ______.
The trachea is found anterior to the esophagus; connects the larynx to primary bronchi; inferiorly the trachea divides into right and left main bronchi.
The trachea is around 10-12 cm long and 2-3 cm wide, and it is made up of cartilage rings that support the tube and keep it from collapsing during inhalation. Lining the trachea is ciliated mucosa, which captures and eliminates foreign particles and mucus from the respiratory system. Mucus is also secreted by the mucosa to assist moisten and warm the inspired air. The trachea splits inferiorly into right and left primary bronchi, which divide further into secondary and tertiary bronchi, finally delivering air to the lungs. The trachea is a tube.
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determine the amount of heat transfer required when this is done during a constant-volume process. (you must provide an answer before moving on to the next part.)
The amount of heat transfer that is required when the process is done during a constant - volume process is 64, 921. 00 Joules
How to find the amount of heat transfer ?To find the amount of heat transfer during a constant-volume process, for a diatomic gas, the formula is :
= 5 / 2 x R
Expanded, this is:
Heat transfer = n Cv Δ T
The amount of heat transfer is therefore :
= ( 1, 000 / 32 ) x ( 5 / 2 R ) x ( 120 - 20 )
= ( 1, 000 / 32) x ( 5 / 2 x 0. 31) x 100
= 64, 921. 00 Joules
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The full question is:
1 kg of oxygen is heated from 20 to 120°C. Determine the amount of heat transfer required when this is done during a constant-volume process.
A load of 100g placed on a spiral spring, A extends it spring by 2cm when the same load is placed on spiral spring, B it extends it by 5cm, which spring has smaller stiffness
Spring A has smaller stiffness.Stiffness is a measure of the spring's resistance to deformation. The stiffer the spring, the more resistant it is to deformation. When a load is applied to a spring, it experiences deformation. Stiffness is a measure of how much force is required to deform the spring by a certain amount.
Springs with higher stiffness require more force to deform them than springs with lower stiffness.A load of 100g placed on a spiral spring, A extends its spring by 2cm, whereas the same load placed on spiral spring, B extends it by 5cm. The stiffness of a spring is inversely proportional to the amount of deformation it experiences. Spring B will be less stiff because it experiences more deformation than Spring A.Spring stiffness is measured in units of force per unit of length. The spring constant k is a measure of stiffness. It is defined as the amount of force required to extend the spring by one unit of length.The spring constant k can be calculated as follows:F = kxWhere F is the force applied, k is the spring constant, and x is the amount of deformation experienced by the spring. We can use this formula to calculate the spring constants for A and B:kA = F/x = 100g/(2/100) = 5000 N/mkB = F/x = 100g/(5/100) = 2000 N/mSpring A has a higher stiffness (5000 N/m) than spring B (2000 N/m) because it requires more force to deform it by the same amount. Hence, spring A has smaller stiffness.
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how does radio waves change with respect to their position to the event horizon
Radio waves, like all forms of electromagnetic radiation, are affected by the gravitational field of massive objects such as black holes, which have an event horizon beyond which nothing, not even light, can escape.
What is radio waves?Radio waves are a type of electromagnetic radiation with a wavelength longer than infrared light and shorter than microwaves. Radio waves are used for communication and information transfer, and are commonly used in radio and television broadcasting, cellular communication, and satellite communication.
As radio waves approach a black hole, they are subject to gravitational redshift, a phenomenon whereby the wavelength of the wave is stretched out and its frequency decreases as it moves away from the black hole's gravitational field.
This means that the closer the radio waves get to the event horizon, the more they are redshifted, and the longer their wavelengths become.
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which stereo microphone technique works only from level differences produced by off-axis attenuation and not from difference in time delay
The stereo microphone technique that works only from level differences produced by off-axis attenuation is called Mid-Side (M-S) stereo recording.
Mid-Side (M-S) stereo recording technique utilizes two microphones, one of which is pointed directly at the sound source and the other pointing 90 degrees to the left or right. The result is two channels of audio which are then combined in the mixing process to create a full stereo image. The two signals have a 3 dB difference in level between them, with the off-axis microphone being the lower of the two. This level difference produces the stereo image and is the only factor used in M-S stereo recording. Time delays are not used in this technique, as the level differences are sufficient to create the stereo image.
M-S stereo recording has a number of benefits, such as being able to adjust the width of the stereo image in the mixing process, and allowing for mono compatibility. It is therefore a great choice for stereo recordings that need to be heard in both mono and stereo, such as live broadcasts or online streams.
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true or false: electrically neutral objects have no positive or negative charges, that is why they are neutral
True, electrically neutral objects have no positive or negative charges, that is why they are neutral.
Electrically neutral objects have an equal number of protons and electrons, so the total charge on the object is zero. This is why we refer to the object as being ‘neutral’. It has no charge.
In a chemical reaction, protons are transferred between particles, such as atoms or ions. When an atom loses or gains protons, its charge changes, either becoming more negative or more positive.
An atom which has the same number of protons and electrons has a net charge of zero and is neutral.
In an electric field, a neutral object experiences no force due to the absence of electric charge on its surface. When placed in a magnetic field, however, a neutral object still experiences a force due to its electrons.
Electrons have a magnetic moment, so they are affected by the magnetic field, causing the neutral object to move.
Electrically neutral objects have no positive or negative charges, that is why they are neutral.
Their charge is zero, so they are not affected by electric fields, but still experience a force in a magnetic field due to the magnetic moment of their electrons.
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an unspecified force causes a 0.10-kg object to accelerate at 0.30 m/s2. if 0.40 kg is added to the 0.10-kg object and the force remains the same, what is the acceleration (in m/s2) of the heavier object? (never include units with the answer to a numerical question.)
The acceleration of the heavier object can be calculated by rearranging the equation for Force (F) = Mass (m) x Acceleration (a). The force in the original problem was 0.10 kg, with an acceleration of 0.30 m/s2. When the mass of the object is increased to 0.50 kg, the acceleration of the heavier object becomes 0.20 m/s2.
To calculate this, we can divide both sides of the equation by the mass, producing: a = F / m. We can then substitute in the values from the original problem, 0.10 kg for the mass and 0.30 m/s2 for the acceleration, giving us 0.30 m/s2 = F / 0.10 kg. When we increase the mass to 0.50 kg, we can rearrange this equation to give us the acceleration of the heavier object, a = F / 0.50 kg, resulting in 0.20 m/s2.
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g what is the expected acceleration of the cart if its mass is 220 g and two masses of 250 g each are added to it. a mass of 60 g is placed in the mass hanger of 5 g.
The expected acceleration of the cart when two masses of 250 g are added to it, and a mass of 60 g is placed in the mass hanger of 5 g, given that its mass is 220 g is 1.55 m/s².
What is acceleration?
Acceleration is the change in velocity with respect to time. It can be defined as the rate at which the velocity of a body changes with respect to time. It is denoted by "a".
Mass is the amount of matter in a body or object. It is a scalar quantity, which is denoted by "m".
acceleration: a = (v - u) / t
Where; a = acceleration
v = final velocity
u = initial velocity
t = time taken
The expected acceleration of the cart:
Mass = Mass of cart + Mass of 2 masses
Mass = 220 g + (2 × 250 g)
Mass = 720 g
The total mass hanging on the mass hanger:
Mass on hanger = Mass of hanger + Mass on a hanger
Mass on hanger = 5 g + 60 g
Mass on hanger = 65 g
The net force acting on the system.
Net force = (Mass on hanger + Mass) × gNet force
= (65 g + 720 g) × 9.8 m/s²
Net force = 7.06 N
The expected acceleration of the cart;
a = F / ma
= (7.06 N) / (720 g)
a = (7.06 N) / (0.72 kg)a
= 9.81 m/s² × (7.06 / 0.72)a
= 1.55 m/s²
Therefore, the expected acceleration of the cart when two masses of 250 g are added to it, and a mass of 60 g is placed in the mass hanger of 5 g, given that its mass is 220 g is 1.55 m/s².
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The grades received by 10 college sophomores in a test are A, B, D, A, A, A, C, B, C, and A. From this data, it can be inferred that the mode is _____.
It can be inferred that the mode is A from the data about grades.
In statistics, the mode in a given data set is the value or set of values that occur most frequently in the data set. The grades received by ten college sophomores in a test are A, B, D, A, A, A, C, B, C, and A. From this data, it can be inferred that the mode is A, which occurs five times.
It can also be noticed that the frequency of sophomores receiving grades B, C, and D is 2, 2, and 1, respectively. Since grade A occurs most frequently (5 times) in the given data set, therefore, it can be inferred that the mode of the data set is A.
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Question about my assignment
Answer: A - Gold Foil Experiment
Explanation:
Answer:
A
Explanation: Rutherford's gold foil experiment.