A rabbit hops at 2.50 m/s east for 2.00 minutes, and then stops for 30.0 seconds. The rabbit then hops at 3.00 m/s east for 60.0 seconds.
a) Find the rabbit's displacement from its starting point.
b)Find the rabbit's average speed for its full journey (including the stop).

Wavelength, frequency, and energy are related. what happens to a wave as it’s wavelength gets shorter?

As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. there is no one around to , so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley. you pull up on the rope to lift the box. use g for the magnitude of the acceleration due to gravity and neglect friction forces. once you have pulled hard enough to start the box moving upward, what is the magnitude f of the upward force you must apply to the rope to start raising the box with constant velocity? express the magnitude of the force in terms of m, the mass of the box.

Which situation will produce the greatest change of momentum