The series-200 train has one of the highest operating speed: 76.4 m/s. If a series-200 train has a maximum kinetic energy of 2.78 x 109 J, what is its mass?
The series-200 train has one of the highest operating speed: 76.4 m/s. If a series-200 train has a maximum kinetic energy of 2.78 x 109 J, what is its mass?
A 5g apple is thrown straight upward with an initial velocity of 20 m/s @ a point of 1.5m height from ground. Ignoring air friction, find: a. Total mechanical energy of the...
A boy pulls a 10.0 kg book rack at rest on a smooth floor with a constant horizontal force of 1.2N starting from rest. Compute the change in kinetic energy of the box after the...
if the average kinetic energy of a substance changes, a. its temperture changes b. it may change phase c. thermal energy has been transferred into or...
Suppose at P point, a body loses its entire K.E which it had at O point and at Q point body losses 1/3 of its K.E which is at has at O. Find out the height h.
A 15-g CD with a radius of 7.5 cm rotates with an angular speed of 40 rad/s. What is its kinetic energy?