Standing waves is the perfect answer for this
What distinguishes asteroids from other solar system objects is that they always have irregular, "potato-like" shapes.
True
False
What distinguishes asteroids from other solar system objects is that they always have irregular, "potato-like" shapes, it's a true statment.
What are asteroids?Asteroids are rocky, metallic objects that orbit the Sun, but too small to be considered planets. They are known as secondary planets. Asteroids range in size: from Ceres, which has a diameter of about 1000 km, to the size of boulders.
In this case, For very small asteroids, it is not difficult to accept that they are irregularly shaped either because they have not grown enough, or because they are pieces of larger bodies that collided.
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When looking through her father's medical supplies, Isabella is surprised to see a funny looking flashlight. She turns it on and it seems to glow
purple. She asks her father what it is for, and he tells her that he uses the light to perform Wood's Lamp Tests. He tells Isabella that it is not ofte
that he uses the light but only if he suspects a certain zoonotic disease. Which disease would cause Isabella's dad to get out his black light?
A ringworm
B. plague
Chantavirus
D.
anthra
Reset
Next
G
Plague disease would cause Isabella's dad to get out his black light. Option B is correct.
What is zoonotic disease?A zoonotic is an infectious illness that is spread from animals to humans.
Plague, defined as the infectious illness. Fever, weakness, and headache are some symptoms.
This often occurs one to seven days following exposure. There are three types of plague, each of which affects a different bodily area and causes various symptoms.
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describe an experimental procedure the student could use to collect the data needed to find the frictional torque exerted on the platform while it rotates
A frictional torque is exerted on a platform while it rotates because the force is along it's axis and changes only the magnitude and not the direction of the angular velocity.
What is frictional torque?A frictional torque is a rotational force that is caused by the movement of two objects that are in contact.
To collect data needed to find the frictional torque exerted on the platform while it rotates the experimental procedure the student should use include the following:
A disc shaped platform with know inertiaThe platform should be mounted on a fixed axle.The platform should also be rotating on a horizontal plane.The quantities that should be measured is that rotational frictional force and angular velocity.
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Continuing to do a certain motion over and over that’s not good for your body can lead to aches, pains, and even permanent damage.
A.
True
B.
False
Answer:
True
Explanation:
Examples: factory workers at Tyson complain of pains because of doing the same motion for 8 hours a day and how ever many days a year.
What area of research did brahe assign to kepler, which led to the development of his laws of planetary motion? the universal law of attraction the universal law of gravitation the retrograde motion of the sun the retrograde motion of mars
The area of reaserch in which Kepler worked is the area of the retrograde motion of the sun.
Who is Kepler?Kepler is most known for his popular laws that deal with the idea of planatary motion. There are three laws of planetary motion as described by Kepler.
Hence, the area of reaserch in which Kepler worked is the area of the retrograde motion of the sun.
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Answer:
its actually D.the retrograde motion of mars
Use the drop-down menu to answer the question. which sound wave-object interaction is used by animals in echolocation?
Answer:
Reflection
Explanation:
A beam of light bends when it passes from air into water, and then bends even more when it passes from water into glass. What can you conclude from this fact?.
Answer:
Certain Things Make Light Bend?
Explanation:
Transparent Objects/ things can make light bend when entering through it.
Which of the following objects would probably become hottest if left in the sun for several hours?
a piece of white paper
a piece of black plastic
a sheet of aluminum foil
a block of light-coloured wood
The power produced by an electric motor is 400w.how long will it take the motor to do 10,000 j of work
Answer:
Energy = Power × Time
We make Time the subject in this equation
Time = Energy ÷ Power
Time = 10000 ÷ 400
Time = 25seconds
How many galaxies similar in size to the milky way would you expect to find, on average, in cubes of that same size? in order to simplify the problem, assume that the total number of galaxies of each type has not changed between then and now.
The number of galaxies similar in size to the milky way that one can expect to find in cubes of that same size will be 64.
What is a milky way?It should be noted that milky way simply means a spiral galaxy shaped that contains stars.
Here, the number of galaxies similar in size to the milky way that one can expect to find in cubes of that same size will be 64.
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An apple is released from rest 500 m above the ground. Due to the combined forces of air resistance and gravity, it has a speed of 40 m s when it reaches the ground. What percentage of the initial mechanical energy of the apple-earth system was dissipated due to air resistance? take the potential energy of the apple-earth system to be zero when the apple reaches the ground.
The percentage of the initial mechanical energy of the apple-earth system that was dissipated is : 84%
Determine the percentage of the initial mechanical energy dissipatedGiven that
Potential energy = mgh = 0
= m* 9.81 * 500 = 0
= 4905 m J
Kinetic energy ( K ) = 1/2 mv²
= 1/2 * m * 40²
= 800 m
Next step : calculate the dissipated energy
dissipated energy = Potential energy - kinetic energy
= 4905 m - 800 m
= 4105 m
Final step : determine the percentage of the dissipated energy
= dissipated energy / potential energy
= 4105 m / 4905 m
= 84%
Hence we can conclude that The percentage of the initial mechanical energy of the apple-earth system that was dissipated is : 84%
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Entropy is a state that goes from “order to disorder," what is the only way living things can slow down this process?
Thr only way living things can slow down the process of entropy is through anabolic processes.
What is entropy?Entropy is the degree of disorderliness or randomness of a substance.
According to the second law of thermodynamics, the entropy of a system always tends to increase.
Metabolism in living things involves two processes:
catabolism and anabolismCatabolism increases entropy whereas anabolism decreases entropy.
Therefore, the only way living things can slow down the process of entropy is by anabolic processes.
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The most reactive nonmetals are the
a. transition metals.
b. noble gases.
c. alkali metals
d. halogens.
A solenoid 86.0 cm long has a radius of 2.40 cm and a winding of 1000 turns; it carries a current of 3.60 A. Calculate the magnitude of the magnetic field inside the solenoid.
Hello!
We can use the following equation:
[tex]B = \mu_0 ni[/tex]
B = Magnetic field strength (T)
μ₀ = Permeability of free space (Tm/A)
n = # of loops per unit length
We are given the total number of loops (N), so divide by length:
[tex]n = \frac{N}{l} = \frac{1000}{.86} = 1162.79[/tex]
Now, plug this value into the equation for the magnetic field strength:
[tex]B = (4\pi \times 10^{-7})(1162.79)(3.6) = \boxed{0.00526 T}[/tex]
When charging a secondary cell, energy is stored within a dielectric material using an electric field. True or False
It is a false statement that; "when charging a secondary cell, energy is stored within a dielectric material using an electric field"
What is a secondary cell?The term secondary cell refers to a cell that can be recharged when it is used up. A typical example of a secondary cell is a lithium ion battery.
We know that most of the secondary cell are charged using a chemical that is inside the battery. As such, it is a false statement that; "when charging a secondary cell, energy is stored within a dielectric material using an electric field"
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A long pipe organ is 10 m tall. It has an open end and closed end. Find
the fifth harmonic frequency of this pipe organ pipe when the speed of
sound in the organ is 340 m/s.
Answer:
Resonances occur at:
OC OCOC OCOCOC OCOCOCOC OCOCOCOCOCλ
λ/4 3λ/4 5λ/4 7λ/4 9λ/4
A resonance occrurs at λ/4
Thereafter, resonance occurs every λ/2
The fifth resonance will occur at λ/4 + 2λ = 9λ/4
If λ / 4 = 10 m then λ = 40 m
9 λ / 4 = 10 m because the pipe is 10 m long
λ = 40 m / 9 = 4.44 m the fifth resonance occcurs at a wavelength of 4.44 m
f λ = c = 340 m/sec
f = 340 m/sec / 4.44 m = 76.5 / sec
Note: the first resonance occurs at f = 340 / 40 = 8.5 /sec
guys please help me i need to get this done
my teacher wants me to find the total distance and the displacement please give explanation also ty
A girl attempts to drink a large glass of water without stopping. when she finishes, she gasps for air as she was unable to breath while drinking. question 26 options: inherited learned conditioning imprinting
The behaviour that has just been displayed by the girl is an example of a learned behavior.
What is learned behaviour?The term learned behaviour has to do with those behaviour that the individual acquires by practise and are not innate in the organism. The ability to drink a large amount of water without breathing is not inate in man.
Hence, the behaviour that has just been displayed by the girl is an example of a learned behavior.
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An apple is released from rest 500 m above the ground. Due to the combined forces of air resistance and gravity, it has a speed of 40 m s when it reaches the ground. What percentage of the initial mechanical energy of the apple-Earth system was dissipated due to air resistance
Answer:
84%
Explanation:
Find a ratio
Often times we think about insulation, we think about keeping cold items cold, such as drinks in an ice chest or the cool temperature in your home. But insulation also keeps things high! The same thermos that keeps your water cold keep your hot chocolate worm. How was that possible?
Answer:
So, insulation essentially works by creating a sort of barrier between the hot and the cold object. This barrier helps to reduce heat transfer by either reflecting the thermal radiation or by decreasing thermal conduction and convection from one object to the other.
Answer:
So, insulation essentially works by creating a sort of barrier between the hot and the cold object. This barrier helps to reduce heat transfer by either reflecting the thermal radiation or by decreasing thermal conduction and convection from one object to the other.
An electron, starting from rest, accelerates through a potential difference of 25.0 V. What is the final de Broglie wavelength of the electron, assuming that its final speed is not relativistic
Answer: λ = 0.245 nm
Explanation:
KE = qV
V = 25.0 V
where q = e = 1.6*10^-19
KE = (1.6*10^-19)(25.0 V)
KE= 4.0 * 10^-18 J
λ = [tex]\frac{h}{\sqrt{2mKE} }[/tex]
mass of electron = 9.11 * 10^-34
λ = [tex]\frac{6.626*10^{-34} }{\sqrt{(2)(9.11*10^{-31})(4.0*10^{-18}) } }[/tex]
λ = 2.45 e -10 m
λ = 0.245 nm
FORENSICS!!
What are physical properties for each piece of evidence?
1. Blood
2. Body
3. gun
4. White powder
5. cup
6. Dark hair strand
7. Shell casing
8. Light hair strand
What is the frequency of a 6.14 x 10^4 m wave?
A. 2.7 x 10 ^ 8 hz
B. 1.18 x 10 ^ 3 hz
C. 4.88 x 10^3 hz
D. 1.4 x 10 ^ -6 hz
Answer:
C.
Explanation:
I think it's c please let me know if it's incorrect
What force causes galaxies to move away from one another?.
Answer:
energy left over from the big bang
Explanation:
Which event in a solar cell uses the photoelectric effect?
Answer:
Light shone on metal expulses electrons from its surface. This phenomenon is the photoelectric effect, and the electrons are called photoelectrons. Experiments indicate that by increasing light frequency, the kinetic energy of the photoelectrons increases, and by intensifying the light, the current increases
If an investigator wanted to reproduce the results with a beam of protons, what would require to get a strong m = 1 reflection at ϕ = 50∘? If an investigator wanted to reproduce the results with a beam of protons, what would require to get a strong = 1 reflection at = 50? Lower speed particles than for the electron beam. Higher speed particles than for the electron beam. Particles moving at the same speed as for the electron beam
When the investigator wanted to reproduce the results with a beam of protons, the thing required is A. Lower speed particles than for the electron beam.
What is proton?It should be noted that a proton simply means a stable subatomic particle that has a positive electric charge.
In this case, when the investigator wanted to reproduce the results with a beam of protons, the thing required is a lower speed particles than for the electron beam.
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A bullet with a mass of 4.26 g and a speed of 881 m/s penetrates a tree horizontally to a depth of 4.44 cm. Assume that a constant frictional force stops the bullet. Calculate the magnitude of this frictional force. Try energy considerations.
Let F be the magnitude of the frictional force. This force performs an amount of work W on the bullet such that
W = -Fx
where x is the distance over which F is acting. This is the only force acting on the bullet as it penetrates the tree. The work-energy theorem says the total work performed on a body is equal to the change in that body's kinetic energy, so we have
W = ∆K
-Fx = 0 - 1/2 mv²
where m is the body's mass and v is its speed.
Solve for F and plug in the given information:
F = mv²/(2x)
F = (0.00426 kg) (881 m/s)² / (2 (0.0444 m))
F = 37,234.8 N ≈ 37.2 kN
15. A ruby-throated hummingbird beats its wings at a rate of about 70 wing beats per
second.
What is the frequency in Hertz of the sound wave?
b. Assuming the sound wave moves with a velocity of 350 m/s, what is the
wavelength of the wave?
U
E
Answer:
a
Explanation:
You push a box 10.0m with a force of 45 N. How much work do you do?
Answer:
450m because you multiply the force to the distance to get how much work you've done.
What secondary color is made by mixing red and green in the rgb additive-color scheme for light?.
Explanation:
Looking at the placement of primary colors in the RGB color wheel, the mixing of the red and green colors will create Yellow secondary color.
The secondary color that is made by mixing red and green in the rgb additive-color scheme for light is Yellow.
What is secondary color?Red, blue, and some are primary colors. Primary colors cannot be mixed with secondary colors.
All other colors are derived from them. Secondary colors are created by combining two primary colors that are adjacent to each other on the color wheel. Orange, green, and violet are the secondary colors.
As an accent color, a secondary color can be combined with a primary color. The primary color remains dominant, but the secondary color is used in tandem to draw attention.
The sum of two primary colors of equal intensity yields a secondary color: cyan is green+blue, magenta is blue+red, and yellow is red+green.
Thus, the secondary color of red and green combination is yellow.
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