Aperson jogs 4.0 km in 32 minutes , then 2.0km in 22 minutes and finally 1.0km in 16 minutes . what is the joggers average speed in km per minute?

The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?

The amount of potential energy possessed by an elevated object is equal to what?

Suppose a soccer ball is kicked from the ground at an angle 20.0º above the horizontal at 8.00 m/s. the y-velocity is determined to be 2.74 m/s. how long will the ball be in the air? assume the ball lands at the same height at which it was kicked.