A bullet with a mass of 0.01kg is fired from a firearm with a barrel that is 0.34 m long. If the Force exerted by the expanding gas is 5,180 N,
what is the kinetic energy of the bullet leaving the firearm?

Ahorizontal wire is tied to supports at each end and vibrates in its second-overtone standing wave. the tension in the wire is 5.00 n, and the node-to-node distance in the standing wave is 6.28 cm. (a) what is the length of the wire? (b) a point at an anti- node of the standing wave on the wire travels from its maximum upward displacement to its maximum downward displacement in 8.40 ms. what is the wire's mass?

1400 kg car has a speed of 27 m/s. if it takes 7 s to stop the car, what is the impulse and the average force acting on the car?

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects