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Physics, 22.06.2019 13:10
Most short-period comets do not have randomly oriented orbits because
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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?
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Physics, 23.06.2019 10:30
Pls ! what are 3 examples of acceleration that doesn’t involve a change in speed ?
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The unit newton metre (N-m) is equivalent to...
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