Which of the following is an example of converting kinetic energy into potential energy?
a. dropping your backpack on the floor
b. walking to class with your backpack on
c. sliding the backpack across your desk to a friend
d. picking up your backpack to get out an assignment

How much heat is required to convert 0.3 kg of ice at 0°c to water at the same temperature

If angle "a" is 25°, angle "b" is: a) equal to angle c b) less than angle c c) greater than angle c

Alarge cruise ship of mass 7.00 ✕ 107 kg has a speed of 11.6 m/s at some instant. (a) what is the ship's kinetic energy at this time? (b) how much work is required to stop it? (give the work done on the ship. include the sign of the value in your answer.) (c) what is the magnitude of the constant force required to stop it as it undergoes a displacement of 3.00 km?