A fisherman in a rowboat notices that one wave crest passes his fishing line every 5 seconds. He estimates the distance between the crests to be 2 m and estimates the
crests of the waves to be 0.4 m above the troughs. Using these data, determine the
amplitude and wave speed of the waves. Remember that wave speed is calculated with
the formula v = 2 x f.

Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 11.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.80 m/s; (b) he is then lifted at the constant speed of 4.80 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 78.0 kg rescue by the force lifting him during each stage

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

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.