If a 46 g tennis ball is hit by a racket that makes an angle of 45 degrees with the horizontal. The tennis ball lands 200 m away from the point it is thrown. What is the average force of impact, if the tennis ball and racket are in contact for 7 ms? (g=9.8 m/s^2) Answer Choices: A) 1165.6 N B) 874.2 N C)582.8 N D) 291.4 N E)145.7 N

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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.

1. a camcorder has a power rating of 19 watts. if the output voltage from its battery is 7 volts, what current does it use?answer units 2. a 1.5m wire carries a 6 a current when a potential difference of 57 v is applied. what is the resistance of the wire? yourunits 3. a clothes dryer uses about 2 amps of current from a 240 volt line. how much power does it use? yourunits 4.

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