Which of the following statements is true in the case of a collision?
a)increased impact time will increase the impact force.
(b)reduced impact velocity will increase the impact force/
(c)reduced impact mass will increase the impact force
(d)reduced impact time will increase the impact force.

What is the coefficient of kinetic friction μk between the block and the tabletop?

Compare the patterns of the two waves shown in the image. which statement is true about these waves?

Which statement is true? a) the work done to lift an object 6 meters is greater than the gravitational potential energy it gains. b) the work required to push an object is less than the work required to pull an object the same distance. c) the work required to raise an object to a height is equal to the gravitational potential energy the object gains. d) the work done against gravity to lift an object straight up is greater than the work required to roll it up a ramp.