Apaper airplane is thrown to the north from the top of a cliff with a speed of 2 km/h. the paper airplane lands 15 minutes (0.25 hours) later. how far from the cliff did the paper airplane land? a.0.25 km to the north b.0.5 km to the north c.0.7 km to the north d.1.5 km to the north

An incident ray through the focal point of a spherical mirror will: reflect through the center of curvature. reflect back through the focal point. reflect parallel to the principle axis. reflect the same direction as the incident ray.

What is special about a dc circuit ?

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?