2. A ball is released from a vertical height of 20 cm. It rolls down a "perfectly frictionless” ramp and up a similar ramp. What vertical height on the second
ramp will the ball reach before it starts to roll back down?

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.