A 1.2 kg skateboard is coasting along the sidewalk at a speed of 5.0 m/s when a 800 g. cat jumps down from a tree(no horizontal motion) onto the skateboard. What is the speed of the cat after the collision? a 3.2 m/s
b 0.3 m/s
c .03 m/s
d 3.0 m/s

Amarble, a bowling ball, a basketball, and a baseball are rolling across the floor at 10 m/s. which one has the greatest kinetic energy? the marble the bowling ball the basketball the baseball

The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of

Which statements describe the movement of ocean currents around the globe? check all that apply. strong winds force warm water to sink to the ocean floor. the coriolis effect causes warm and cold water to mix. cool dense water sinks to the ocean floor. warm water replaces cool surface water. wind blowing parallel to the shore causes upwelling of cool water.