A person lifts a heavy load to a vertical height of 2.0 m in 3 seconds. If he/she had done this more slowly in 6 seconds, the work on the load would have been:
Four times as great
half as great
the same
twice as great

Which describe reflection? check all that apply. light bounces off a boundary.

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.

In positive numbers less than 1, the zeros between the decimal point and a non-zero number are blank significant