Aplastic block of mass 0.20.2kg is initially at rest on a horizontal frictionless surface. a bullet of mass 1212 g is fired with an initial speed of 550550m/s towards the block. the bullet passes completely through the block and exits the other side with a speed of 20.020.0m/s. what percent of the initial kinetic energy of the bullet block system is lost during the collision?
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Acar traveling at 22 m/s starts to decelerate steadily. it comes to a complete stop in 15 seconds. what is it’s acceleration?
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The precision of a laboratory instrument is ± 0.05 g. the accepted value for your measurement is 7.92 g. which measurements are in the accepted range? check all that apply. 7.85 g 7.89 g 7.91 g 7.97 g 7.99 g
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Which levels of government establish and implement educational requirements for minors
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Aballoon is rising vertically upwards at a velocity of 10m/s. when it is at a height of 45m from the ground, a parachute bails out from it. after 3s he opens his parachute and decelerates ata a constant rate 5m/s.when. (a) what was the height of the parachutist above the ground when he opened his parachute? (b)how far is the parachutist from the balloon at t=3s? (c)with what velocity does the parachutist hit the ground? (d)after how long does the parachutist hit the ground after his exist from the balloon?
Answers: 3
Aplastic block of mass 0.20.2kg is initially at rest on a horizontal frictionless surface. a bullet...
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