Effective sex education must engage more than .

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.

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?

How does the strength of the electrostatic force between an electron and a proton compare to the strength of the gravitational force between them?