Answer:
We can use the work-energy theorem to find the average power produced by the rocket:
Work done = Change in kinetic energy = (1/2)mv_f^2 - (1/2)mv_i^2
where m is the mass of the rocket, v_f is the final velocity, and v_i is the initial velocity.
From the given information, we have:
m = 2.77*10^6 kg
v_f = 56 m/s
v_i = 0 m/s
Using the kinematic equation for displacement:
y = v_i*t + (1/2)at^2
where y is the displacement (altitude), t is the time, and a is the acceleration.
We can rearrange this equation to solve for a:
a = 2y/t^2 = 2(510 m)/(20.0 s)^2 = 1.275 m/s^2
Then, we can use the kinematic equation for velocity:
v_f = v_i + at
v_f = 0 m/s + (1.275 m/s^2)(20.0 s) = 25.5 m/s
Now we can calculate the work done by the rocket:
Work done = (1/2)(2.7710^6 kg)(25.5 m/s)^2 - (1/2)(2.7710^6 kg)(0 m/s)^2 = 9.065*10^8 J
Finally, we can calculate the average power produced by the rocket:
Average power = Work done / Time taken = 9.06510^8 J / 20.0 s = 4.5310^7 W
Therefore, the average power produced by the rocket was approximately 4.53*10^7 W.
The answer is: 9.1∗10^8 W.
Explanation:
A force Fy shown in the figure below acts on a particle moving along the y axis. Each unit on the
y(m)
axis equals 2.00 m and each unit on the
Fy(N) axis
equals 2.00 N. Determine the work done on the particle by this force as it moves from the following initial to final positions.
WebAssign Plot
(a) from y = A to y = B
J
(b) from y = B to y = C
J
(c) from y = A to y = C
J
Graph of area under force vs displacement shows work done. Thus A. is 30J, B. is -12J, C. 18J.
What is work done?Amount of energy required for the displacement of an object at certain distance, is called work done.
Given,
along y(m) axis, each unit is 2m.
along Fy(N) axis, each unit is 2N.
A. Distance between y = A to y = B
W(AB) = 1/2×base×height
W(AB) = 1/2×10m×6N
W(AB) = 30J
B. Distance between y = B to y = C
W(BC) = 1/2×base×height
W(BC) = 1/2×6m×-4N
W(BC) = -12J
C. Distance between y = A to y = C
W(AC) = W(AB)+W(BC)
W(AC) = 30J+(-12J)
W(AC) = 18J.
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The question is incomplete, but most probably the complete question is, attached in image:
Which object has the greatest kinetic energy?
A. a truck with a mass of 3,500 kg moving at 30 m/s
B. a fast pitched baseball with a mass of .5 kg moving at 46.9 m/s
C. a locomotive engine with a mass of 205,000 kg moving 5 m/s
D. a person with a mass of 73 kg running 6 m/s
The object with the greatest kinetic energy is the locomotive engine (option C)
How do I know which object has the greatest kinetic energy?To know the object with the greatest kinetic energy, we shall determine the kinetic energy of each objects. Details below:
For truck:
Mass (m) = 3500 KgVelocity (v) = 30 m/sKinetic energy (KE) =?KE = ½mv²
KE = ½ × 3500 × 30²
KE = 1575000 J
For baseball:
Mass (m) = 0.5 KgVelocity (v) = 46.9 m/sKinetic energy (KE) =?KE = ½mv²
KE = ½ × 0.5 × 46.9²
KE = 549.90 J
For locomotive:
Mass (m) = 205000 KgVelocity (v) = 5 m/sKinetic energy (KE) =?KE = ½mv²
KE = ½ × 205000 × 5²
KE = 2562500 J
For person:
Mass (m) = 73 KgVelocity (v) = 6 m/sKinetic energy (KE) =?KE = ½mv²
KE = ½ × 73 × 6²
KE = 1314 J
From the above calculations, we can see that the locomotive has the greatest kinetic energy. Thus, the correct answer is option C
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A velocity vs. time graph is shown.
Velocity (m/s)
20
16
12
8
4
0
0
Velocity vs Time
1
2
3
Time (s)
4
5
What is the acceleration of the object?
0 m/s²
* 0.25 m/s²2
4 m/s²
8 m/s²
The acceleration of the object is - 4 m/s².
What is the acceleration of an object?
The acceleration of an object is the measure of change of velocity with change in time of motion.
Mathematically, the formula for acceleration is given as;
a = Δv / Δt
a = ( v₂ - v₁ ) / ( t₂ - t₁ )
where;
v₂ is the final velocityv₁ is the initial velocityt₂ is the final time of motiont₁ is the initial timeFrom the data given, we have;
velocity (m/s) time ( s )
20 1
16 2
12 3
8 4
4 5
a = ( 16 - 20 ) / ( 2 - 1 )
a = - 4 m/s²
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35. Motors When the plane of an armature in a motor is perpendicular to the magnetic field, the forces do not exert a torque on the coil. Does this mean that the coil does not rotate? Explain.
Answer:
The coil rotates due to its inertia.
Maximum torque occurs when the plane of the coil is parallel to the magnetic field - consider the directions involved in F = I L B - the resulting force is perpendicular to I and B
A rigid board is initially at rest on a frozen pond. Friction between the ice and the board is negligible. An ice skater moving with a constant linear velocity approaches the board and jumps onto the board. Which statement below is true?
A. Linear momentum is converted to angular momentum.
B. Kinetic energy is converted to angular momentum.
C. Rotational kinetic energy is conserved.
D. Linear momentum and angular momentum are both conserved.
Answer:
D. Linear momentum and angular momentum are both conserved.
When the skater jumps onto the board, he/she transfers linear momentum to the board, causing it to start moving with a velocity in the same direction as the skater. However, since the board was at rest initially, its total linear momentum changes from zero to a non-zero value. This conservation of linear momentum can be expressed as:
m(skater) x v(skater) = (m(board) + m(skater)) x v(final)
where m(skater) and v(skater) are the mass and velocity of the skater before the jump, m(board) is the mass of the board, and v(final) is the velocity of the skater and board after the jump.
At the same time, since there is no external torque acting on the board-skater system, the conservation of angular momentum can be expressed as:
I x w(initial) = (I(skater) + I(board)) x w(final)
where I is the moment of inertia of the board-skater system, w(initial) is the initial angular velocity (zero), I(skater) is the moment of inertia of the skater, I(board) is the moment of inertia of the board, and w(final) is the final angular velocity of the system.
Therefore, both linear momentum and angular momentum are conserved in this situation. The conversion of kinetic energy to angular momentum (option B) is not relevant in this case since there is no external torque acting on the system. The conservation of rotational kinetic energy (option C) is also not applicable since the system does not rotate before or after the jump.
Explanation:
Apollo 14 launched in the late afternoon of January 31, 1971, on what was to be our third trip to the lunar surface. Five days later Alan Shepard
and Edgar Mitchell walked on the Moon while Stuart Roosa, a former U.S. Forest Service smoke jumper orbited above in the command module.
What is the meaning of the phrase command module as it is used in the excerpt?
O A.
the detachable part of a spacecraft
О B.
the part of a spacecraft that contains support systems
O c.
a satellite designed to hold a human astronaut
O D.
a satellite designed to orbit the Moon
The meaning of the phrase command module is a satellite designed to hold a human astronaut. The correct option is C
What is Spacecraft ?
A spacecraft is a vehicle or machine designed to fly in outer space. A Spacecraft is a type of artificial satellite is used for a variety of purposes, including communications, Earth observation, meteorology, navigation, space colonization, planetary exploration, and transportation of humans and cargo. All spacecraft except single stage to orbit vehicles cannot get into space on their own, and require a launch vehicle (carrier rocket).
spacecraft is vehicle like designed to operate with or without a crew, in a controlled conditions inside it.
A command module is a detachable controlled compartment of a manned spacecraft. it housed the three-person crew on liftoff and landing and during the trip to and from the Moon In Apollo 14.
Hence option C is correct option
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If HCl is added to Zn, what would be an expected product?
o Cl₂
o HZn
o ZnCl
o ZnCl₂
The expected product would be zinc chloride (ZnCl2).
What is ZnCl2?Inorganic chemical compounds having the formula ZnCl2 and its hydrates are known as zinc chloride. Nine crystalline forms of zinc chlorides are known; they are colorless or white and very soluble in water. This salt is both hygroscopic and sweet.
Zinc chloride serves as the electrolyte in dry cells. It serves as a condensing agent, a disinfectant, a dehydrator, a wood preservative, and a deodorant.
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An ant travels toward the right along a meter stick. If it starts at the 25.00 cm mark and then travels to the 80.00 cm mark, what is its displacement?
displacement = 55 cm.Initial position = 25 cm,Final position = 80 cm,Displacement = final position-finitial position,Putting values in above formula,D = 80 cm - 25 cm,D = 55 cm,It means that the displacement of the ant is 55 cm.
What distinguishes displacement from distance?Distance is the length of any path connecting any two places.As measured along the shortest path between any two points, displacement is indeed the direct distance between them.The direction is ignored when calculating distance.
Displacement: Is it a distance?Displacement is just the distance between an object's starting point and its final location, whereas distance is indeed the length of an object's path.
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An astronomer wants to calculate the magnitude of gravitational acceleration at the surface of a newly discovered exoplanet (an exoplanet is a planet orbiting a star other than our sun). The astronomer has estimated the mass of the exoplanet to be 1.01 times the mass of Earth, and the radius of the planet to be 0.99 times the radius of Earth.
The magnitude of gravitational acceleration at the surface of a newly discovered exoplanet, having the mass to be 1.01 times the mass of Earth, and the radius of the planet to be 0.99 times the radius of Earth is 10.06 m/s².
What is gravitational acceleration?The acceleration that an object experiences when gravity is the only force acting on it is known as gravitational acceleration.
In an empty space, all bodies accelerate at the same rate, regardless of their masses or compositions. This means that any two objects falling from the same height would always hit the ground at the same time if there was no air friction.
Depending on altitude, latitude, and longitude, this free-fall acceleration can range from 9.764 to 9.834 m/s² over the surface of the Earth. However, the accepted standard value is 9.80665 m/s². Gravity anomalies are the regions where this value dramatically varies.
According to the formula,
g = [tex]\frac{GM}{R^{2} }[/tex]
where,
g is gravitational acceleration
G is gravitational constant,
M is mass of planet and,
R is the radius of the planet.
G = 6.67 × 10⁻¹¹
M = 1.01 × 6 × 10²⁴ kg
R = 0.99 × 6.4 × 10⁶ m
substituting the values and solving for g,
g = 10.06 m/s²
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NEED HELP ASAP
a man hits a golf ball at an angle of 35.0 above the horizontal with an initial velocity of 40.0 m/s. it takes the ball 4.7 s to hit the ground. how far dies the golf ball land from its starting point?
Answer:
Below
Explanation:
It travels 4.7 seconds at its
horizontal velocity component of 40 * cos 35 m/s
so it travels 4.7 s * 40 cos (35) m/s = 154 m from start
The golf ball land from its starting point at 154 m
Define projectile motion.
When an item is launched into the air, or projected, projectile motion occurs when air resistance is minimal and gravity is the only other force acting on the object. The trajectory of the item is referred to as its trajectory, and the object is referred to as a projectile.
Projectile motion can be divided into three major categories: vertical, horizontal, and oblique. Gravity causes a vertical acceleration, which has a value of 9.8 m/s/s downward, while maintaining the projectile's horizontal velocity at a steady value.
Time is 4.7s
Velocity is 40m/s
horizontal velocity component of 40 * cos 35 m/s
The golf ball land from its starting point at :
4.7*40 cos (35) = 154 m
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The muffler on a car rusts out and the decibel level of increases from 91 dB to 113 dB. How many times louder is the leaky muffler?
Because of the logarithmic nature of the dB scale, a 10 dB gain in sound in a ten-fold rise in sound pressure; for example, 100 dB is ten times louder than 90 dB, and 110 dB is one hundred times louder than 90 dB.
Why does sound pressure exist?The quantity of air pressure variation that a noise source produces is known as sound pressure. Sound pressure is what we "hear" or interpret as loudness. The surface of the drum in our sample moves just a very small distance when it is struck extremely softly, producing minor pressure fluctuations and just a faint sound.
How loud is it, in decibels?Sound levels are measured using decibels (dB). The sound of a running motorcycle engine is around 95 dB louder than normal conversation, which is about 60 dB louder than just a whisper. Long-term exposure to noise levels above 70 dB may cause damage to your hearing. Loud noise that is over 120 dB can instantly harm your ears.
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For this lab activity, we used materials that deformed relatively easily under a force. But many materials are very rigid unless acted on by a large force (or stress). What methods of investigation might you use to investigate the Young's moduli of such materials? Select all that apply.
1.) Apply significantly larger forces so that deformation is more easily measured with devices like a meter stick or measuring tape.
2.) Find a material that feels very similar to the touch but is more easily deformed. Determine the modulus of this other material and use it to estimate the modulus for the material we want.
3.) Use more precise measuring tools to detect extremely small deformations of rigid materials.
4.) Create a sample of the material that has a very large cross-sectional area so that deformations are more easily induced by a given force.
5.) Create a sample of the material that is very short to increase the strain response of the material to deformation.
6.) Create a sample of the material that is very long to increase the strain response of the material to deformation.
Answer:
1.) Apply significantly larger forces so that deformation is more easily measured with devices like a meter stick or measuring tape.
3.) Use more precise measuring tools to detect extremely small deformations of rigid materials.
4.) Create a sample of the material that has a very large cross-sectional area so that deformations are more easily induced by a given force.
Explanation:
What is the minimum coefficient of static friction between the race car's tires and the track necessary to keep the car from skidding into the wall on the outside of the turn?.
The minimum coefficient of static friction necessary to keep the race car from skidding into the wall on the outside of the turn depends on the speed and mass of the car.
What is static friction?Static friction is a force that acts between two surfaces in contact with each other and prevents them from sliding. It is a resistive force that works to oppose any attempts to move the two surfaces relative to each other. Static friction is much higher than kinetic friction, which is the friction present when two surfaces are sliding against each other. Static friction is the force that must be overcome before kinetic friction will take over and the two surfaces will begin to slide. Static friction is affected by a variety of factors, including the materials of the two surfaces, the roughness of the surfaces, and the normal force between the two surfaces. In general, the higher the normal force, the higher the static friction between the two surfaces.
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Please help (50 points and Brainly)
The mass of the object with kinetic energy of 43200 Joules and velocity of 23 m/s will be 163.33 Kg.
What is Kinetic energy?Kinetic energy is the energy of an object which is present due to the state of motion of the object. Kinetic energy depends upon the mass and velocity of the object. The SI unit of Kinetic energy is meter per second square (m/s²).
KE = 1/2 mv²
where, KE is the Kinetic energy,
m is the mass of the object,
v is the velocity of the object.
KE = 43200 Joules,
v = 23 m/s
KE = 1/2 mv²
m = 2 KE/ v²
m = 2 × 43200/ 23 × 23
m = 86400/ 529
m = 163.33 kg
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what are the two ways that spent fuel can be stored?
Answer:
pent fuel can be stored in two ways - either in pools at individual reactor sites or in dry casks at independent spent fuel storage facilities. Pools are large, water-filled containers in which nuclear reactor fuel is stored while it is not being used. Dry casks are heavy steel containers, or canisters, which are designed to store spent nuclear fuel safely and securely. Moving spent fuel to dry casks reduces the risks of a radiation release. [1] Currently, most spent nuclear fuel is safely stored in specially designed pools at individual reactor sites around the country. [2] All spent fuel should be transferred from wet to dry storage within five years of discharge from the reactor core. [3] 400,000 tons of spent nuclear fuel is stored at hundreds of sites across dozens of countries
Explanation:
Answer:
Spent fuel pools and dry cask storage
Explanation:
The spent-fuel-pool approach involves storing spent fuel assemblies in large pools of water that cool the assemblies and provide shielding from the radiation.
What is the effect of applying wax on the floor? Can you walk better on a shiny floor with barefoot?
Answer:
Yes
Explanation:
Floor wax will provide enough grip on the floor to allow people to walk without slipping, even when the floor is wet. In conclusion, A layer of wax will give your workplace more beauty and brightness. It will add sparkle to your home or business and a clean look that will impress the visitor
Answer:
Applying wax on a floor can have several effects, including:
Protection: Wax can protect the surface of the floor from scratches, stains, and other forms of damage.
Shine: Wax can give the floor a shiny, polished look that can enhance its appearance.
Slip-resistance: Some types of wax can improve the slip-resistance of a floor by creating a slightly textured surface.
However, whether or not you can walk better on a shiny floor with barefoot depends on a few factors. If the floor is very smooth and the wax is very slick, it may be more difficult to walk on the surface, especially if your feet are wet or sweaty. On the other hand, if the wax creates a slightly textured surface, it may provide better traction and make it easier to walk on the floor. Additionally, some people may prefer the feeling of walking on a smooth, polished floor, while others may find it uncomfortable or unpleasant. Ultimately, the effect of applying wax on the floor will depend on the type of wax used, the condition of the floor, and the personal preferences of the individual walking on the surface.
Explanation:
what is the difference between contact and non contact forces?
Answer: so contact forces are forces that physically touch the system such as normal forces or friction and air resistance and push forces done by other objects.
Non contact forces are forces such as
gravity and electromagnetism that don’t necessarily seemed to physically touch it..
For 56 points: We design an experiment to see what we can use to cover a disposable coffee cup in order to keep the liquid inside the cup warm for a longer period of time. After completing research, we decide to wrap one cup in a wool sock and compare that to the original cup with no additional insulation. In this example, the wool sock is
The experiment's manipulable variable, making it the independent variable. The outcome being measured and contrasted between the two situations makes the temperature of the liquid in the cup the dependent variable (with and without the wool sock).
What is Temperature?
Temperature is a measure of the amount of heat energy in a system or object. More specifically, it is a measure of the average kinetic energy of the particles in a substance, such as atoms or molecules.
We must first make sure that both cups begin the experiment with the same volume of hot liquid at the same temperature. The liquid temperature in each cup could then be measured at certain intervals (e.g., every 15 minutes) for a predetermined amount of time (e.g., an hour), and the results could be recorded. To more precisely gauge the liquid's temperature, we might use use a thermometer.
We would compare the liquid's average temperature in each cup over the time we observed after the experiment. We may conclude that the wool sock was successful in maintaining the liquid at room temperature if the cup with the wool sock maintained a greater average temperature than the original cup.
It's vital to keep in mind that we should repeat the experiment several times to make sure that our results are consistent and not the result of chance and to increase the experiment's validity and reliability. Also, we ought to use a bigger sample size and account for any additional factors that can influence the liquid's temperature, such as the environment's temperature or the liquid's initial temperature.
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7. A skydiver has dropped out of the airplane and has just deployed their parachute. They notice that they are
moving at an acceleration of 2 ms. They also know that their mass is 80 kg. What is their force?
10N to the right, what is their force
LICATION
1. A bar of iron can occasionally be magnetized
by laying it on the ground, pointing it parallel
to the earth's magnetic field, and striking it
repeatedly with a hammer. Use the domain
theory to explain what causes the bar to
become magnetized.
The domain theory of magnetism explains that ferromagnetic materials such as iron are composed of tiny magnetic domains that are randomly oriented in the absence of a magnetic field.
The Domain theoryThese domains have their own magnetic fields that cancel each other out. When an external magnetic field is applied to the material, the domains align themselves with the field, resulting in a net magnetic field and the material becoming magnetized.
In the case of the bar of iron being magnetized by striking it repeatedly with a hammer while pointing it parallel to the earth's magnetic field, the mechanical energy from the hammer blows causes the domains to align themselves in the same direction as the earth's magnetic field. This alignment becomes "locked in" as the domains resist changing their orientation once aligned. Therefore, the bar of iron becomes magnetized and will remain so until it is demagnetized or its magnetic domains are realigned in a different direction by another magnetic field.
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If 2 particles are in phase that means they have the exact same pattern of _______________.
Answer:the shape
Explanation:
Answer:
oscillation Explanation: If two particles having the same phase it must either two consecutive troughs or two consecutive crests.Need help right now 20 points!!
3. You use a force of 190 N to walk your bike of mass 22 kg over a distance of 2.0 m. The bike
was initially not moving. How fast is it going while you are pushing? {Fd=AKE}
(Initial velocity = 0)
how are the pedals of a bicycle a simple machine?
Answer:
The pedal is an application tool that applies the force over a short distance on the axle to move the wheel a greater distance with less force.
Explanation:
hope this helped
Assertion : A 25W bulb glows brighter than 50W bulb when both are connected in series to a
potential difference of 220V.
Reason : The potential difference across the 25W bulb is more than a 50W bulb in a series
combination.
The 25-watt bulb, with a higher resistance, are becoming brighter because the same current will be flowing both through bulbs in series, despite their being connected in series.
A watt of electricity is what?In order to honor James Watt, as creator of the steam engine, electricity is expressed as units of force called Watts. One amperage under the pressure with one volt is equal to one watt of electrical power.
12 volts equals how many watts?The amount of Amps is multiplied by the battery voltage to determine Wh. As an illustration, a 12V100 (12 volt cell with a 100 Ah capacity) has a potential ( 12 x 100 Equals 1200 Wh.
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how long would it take a bolt dropped from a 1.3 m ladder to reach the ground?
a bolt is dropped from a 1.3-meter ladder,the long will it take it to reach the ground is Ladder length: 4.27 m =2.14 meters away.
How do meters work?The metric system's and also the International System of Units' primary unit of length is the metre (m), also spelt as meter (SI). The British Imperial us And the Customary systems both convert it to a measurement of roughly 39.37 inches.
How many meters are there in a foot?Approximately 3 feet, 3 inches are equal to one meter, which is the common metric unit. Therefore, a meter is a unit of measurement in the metric system. One meter long things include, but are not limited to, guitars, baseball bats, or yardsticks. In competitions like running and swimming, meters are also employed to gauge distances.
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Lily is moving a ladder to a different spot. She lifts the 2000 newton ladder above her
head at a distance of 8 meters. What are the joules of work being put out?
Pls helpp!!
Answer:
To calculate the work being done by Lily, we need to use the formula:
Work = Force x Distance x cos(theta)
where:
Force = 2000 N (the force required to lift the ladder)
Distance = 8 m (the distance Lily lifts the ladder)
theta = 0 degrees (since Lily is lifting the ladder straight up, the angle between the force and the direction of motion is 0 degrees)
So, the work done by Lily is:
Work = 2000 N x 8 m x cos(0)
Work = 16000 joules
Therefore, the joules of work being put out by Lily when she lifts the 2000 N ladder above her head at a distance of 8 meters is 16000 joules.
Explanation:
After finishing her Physics homework, Julie pulls her 50.0kg body out of the living room chair and climbs the 5.0m high flight of stairs to her bedroom. How much work does Julie do in ascending the stairs?
Answer: 2452.5 Joules
Explanation: The equations we will be using in the problem are Weight=Mass*(Newton's Gravitational constant(9.81m/s^2)) and Work=Force*displacement*cos(the angle between the force and displacement vectors). We won't be needing the cosine part of the work equation because the work and force vectors are parallel so the angle is 0(cos(0)=1).
We are told Julie is 50 kg and she climbs 5 meters I.e. her displacement is 5 meters. We first have to calculate the force acting on Julie so that we can determine what force we will use in the work equation. Weight is a force so we can convert her 50 kg to a weight. We do this by plugging into Weight=Mass*9.81.
Weight=50kg*9.8m/s^2=490.5 Newtons.
Now we know the force that Julie is working against while climbing the stairs. She climbs 5.0m up so her total displacement is 5 meters.
Work=(490.5 N)(5 meters)= 2452.5 Joules
Hope this helps!
For extra practice, figure out how much work Julie was to do if she had been carrying her pet dog in her arms who weighed 32 Kg while climbing 5.0 meters up the stairs.
A body that moves with constant speed while moving in a circle
A. has a resultant torque acting on it
B. undergoes no change in velocity
C. has no work done on it
D. experiences no acceleration
Answer: B
Explanation:
B. undergoes no change in velocity.
The speed of an object that is moving in a circle with constant speed remains constant. This means that the object is not speeding up or slowing down, and therefore it does not experience any change in velocity.
malia is interested in observing cognitive development in children and wants to design a study that will allow her to observe small changes in how 6 year olds learn to solve problems. she plans to collect data from each child every week for three months
which design is her best choice
To study the small changes in 6 year old child to solve problems, the appropriate method of design is microgentic.
What is microgentic design ?A scientific approach known as microgenetic design, sometimes known as the microgentic method, iterative search studying the same environment to examine change in great detail.
Microgenetic designs offer a detailed examination of the behavior of the system while it is changing, in contrast to cross-sectional and longitudinal designs, which only offer broad strokes of the process of change.
The approach is applicable to any system human or otherwise whose behavior varies over time and where it may be interesting or necessary to investigate the specifics of these changes, even though it is frequently linked with developmental psychology.
This includes adult settings as well. Heinz Werner's description of a "genetic approach" in the early 20th century appears to be when the term "microgenetic" first appeared.
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How do you find the number of electrons, protons and neutrons that are in
the atom of an element with the aid of an example
If the atomic number is given then the number of electrons and protons is the same as the atomic number, but the number of neutrons can be calculated by subtracting the atomic number from the atomic mass number of the element.
What is the Atomic mass number?We know that inside the nucleus protons and neutrons are present, the sum of the protons and newtons is called the atomic mass number. and the electron revolves around the nucleus for the stability of an element the number of positive charges (protons ) should be the number of negative charges (electrons).
For example, take Fluorine(F)
Fluorine has a mass number(M)= 19
Atomic number(Z) =9
Now no. of protons in fluorine is = 9
no. of electrons in fluorine is= 9
no of newton in fluorine= M-Z=19-9=10
Hence the number of protons and electrons are same as the atomic number and the number of neutrons is the difference between the atomic mass number and the no f protons or the atomic number.
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