You have two springs that are identical except that spring 1 is stiffer than spring 2, (k1 > k2). on which spring is more work done? (a) if they are stretched using the same force(b) if they are stretched the same distance

Which composition of water moves to begin a deepwater current?

Find the mass by adding the numbers from the three sliders

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?