Other Physics Answers

The pressure gauge on a tank registers the gauge pres-

sure, which is the difference between the interior and

exterior pressure. When the tank is full of oxygen (O2),

it contains 12.0 kg of the gas at a gauge pressure of

40.0 atm. Determine the mass of oxygen that has been

withdrawn from the tank when the pressure reading is

25.0 atm. Assume the temperature of the tank remains

constant.

1. A cannonball is fired horizontally at a speed of 200 m/s from the edge of a cliff out over a flat, level plain. At the same time, a second, identical cannonball rolls off the side of the cliff and falls to the ground below. How will the time required for the fired cannonball to hit the ground compare to the time required for the second cannonball to hit the ground?

two bodies having masses 3kg and 5kg move with velocity 4m/s and 2m/s respectively in the same direction after collision the bigger mass moves with a velocity of 0.8m/s find the velocity of the smaller mass

Two cars started to move on a large circular track from two points exactly opposite to each other , the first car with a constant angular speed of 0.06000 rad/s , the second with a constant angular speed of 0.06157 rad/s , after what time interval the second car meets the first car ?

1. The cable that supports an elevator exerts a force of 14 000 N upwards on the elevator. Gravity pulls down on the elevator with a force of 12 000 N. What is the net force acting on the elevator?

1. An airplane is flying at a constant speed. The thrust from the propeller is 8 000 N [E]. A crosswind is applying a force of 2 000 N [N]. What is the net force acting on the airplane?