Match the characteristic of the surveillance method to the group that used it. 1. limited to the area around the flight path CIA 2. required use of canisters to obtain image data Pentagon 3. gathered data using infrared imaging Army Signal Corps

In a system, when potential energy decreases, then entropy also decreases. true false

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?

Which model displays the change in a gas when the temperature of the gaseous system decreases?