A lab cart with a mass of 15 kg is moving with constant velocity, v, along a straight horizontal track. A student drops a 2 kg mass into it from directly above, and the cart continues moving. Which equation best represents the horizontal momentum in this situation? 15vi 2vf= 15(0) 2vi 15vi 2(0) = 15vf 2(0) 15vi 2(0) = (15 2)vf 15(0) 2vi = (15 2)vf.

According to newton’s first law of motion, which force is expected to cause a body to accelerate?

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.

Which one of the following research methods can show cause and effect