a)The average acceleration of the car is
b) The distance travelled is 560 m
<u>Explanation:
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a) Acceleration is defined as the rate of change in velocity per unit time. So it can be obtained by measuring the ratio of speed to time.
Since here the initial speed was zero and final speed is given as 28 m/s, then time is given as 20 s. So,
b) As the speed is given as 28 m/s, then
So the distance travelled is 560 m and average acceleration is .
Electron revolves around the nucleus. Protons, neutrons are called nucleons because they form nucleus of the atom. Quarks are the fundamental particles which combines to form neutrons, protons and other particles.
Hence electron is the answer.
Answer:
The kinetic energy for both objects is the same.
Explanation:
While in other cases the kinetic energies of two objects that have different masses might be different depending on their velocities, in this case both the 3 kg book and 5 kg bowling ball have the same kinetic energy.
This is because kinetic energy is calculated using the formula: K = 1/2 * m * v^2, where m represents the mass and v represents the velocity of the object.
Since the book and the bowling ball are sitting still on the floor, their velocities are zero. Hence, when we plug in 0 for velocity into the equation for kinetic energy, we will get that the kinetic energy is 0 for the book and the bowling ball.
Hope this helps!
Answer: Gravity
Explanation:The sun may have a lot of gravitational pull but the further away the less it has, meaning planets like uranus or neptune take a long time to orbit around the sun.