A jet travels 3860mi against a jetstream in 5 hours and 4610mi with the jetstream in the same amount of time. What is the rate of the jet in still air and what is the...
A jet travels 3860mi against a jetstream in 5 hours and 4610mi with the jetstream in the same amount of time. What is the rate of the jet in still air and what is the...
A lead 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...
A body of mass 2kg is placed on another body of mass 4kg which is on top of a table. coefficient of friction between the body 2kg and 4kg is 0.2 and that of body 4kg and surface of...
A car moving at 40km/h is to be stopped by applying brakes in the next 4.0 m. if the car weight 2000kg what average force must be applied on it? Ans : Since car moving at speed 40km/h with...
A body is thrown up with a velocity of 100m/s if it travels 5 m in the last seconds of its journey . If the same ball is thrown up with the initial velocity of 200m/s . What distance will it travel...
The sum , difference and cross product of two vector A and B are mutually perpendicular if A and B are perpendicular to each other and |A| = |B| This...
A ball is dropped from a ballon going up at a speed of 7m/s . If the ballon was at 60m at time of dropping the ball how long the ball takes to reach ground level .
Rotation of earth is motion or revolution is motion !what is definition of motion?
Distinguish between loudness and intensity of sound.
define pitch and what effect pitch