The best and most correct answer among the choices provided by your question is the third choice or letter C.
Hitting the drum skin nearer the edge is what <span>would a drummer do to make the sound of a drum give a note of lower pitch.</span>
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The term used is " WORK".
I'm really sorry it's not one of the choices.
<span>1.0 m/s
Momentum = mass x velocity
Total Momentum before any collision = total momentum afterwards
4.0 x 3.0= 12 :g x momentum before (x g because using weight)
Afterwards, if the velocity of the two joined is v then we get:
'momentum x g'=12v
so 12v=12
so v=1m/s</span>
Power = work/time
= 500/10
= 50J/s or 50 watt
Because the molecules that move freely begin to compact closer together, with less heat, means less molecular activity.
