Calculate the amount of work done if you use a 100n force to push a 50kg box 5m across the kitchen floor.
a) 250 j
b) 500 j
c) 5000 j
d) 50,000 j

A2.00-m long piano wire with a mass per unit length of 12.0 g/m is under a tension of 8.00 kn. what is the frequency of the fundamental mode of vibration of this wire?

Abird flies directly overhead from where you stand at an altitude of 300.0 m and at a speed horizontal to the ground of 20.0 m/s. the bird has a mass of 2.0 kg. the radius vector to the bird makes an angle \thetaθ with respect to the ground. the radius vector to the bird and its momentum vector lie in the xyxy-plane. what is the bird’s angular momentum about the point where you are standing?

Abowling ball rolling down the lane toward the pins has gravitational potential energy. a. no b. a lot of c. a little