Aplane flies at a constant groundspeed of miles per hour due east and encounters a -mile-per-hour wind from the northwest. find the airspeed and compass direction that will allow the plane to maintain its groundspeed and eastward direction.

Alead ball is dropped into a lake from a diving board 5m above the water . it hits the water with a certain velocity and then sink with constant velocity in bottom . it reaches the bottom 5 second after it is dropped if g= 10m/s2 . find depth of the lake and average velocity of the ball ?

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter

In a set amount of time, a battery supplies 25j of energy to an electric circuit that includes two different loads. one of the loads produces 10 j of heat energy during this time interval. how much heat energy is produced by the second load in this time? explain your answer