If an object is thrown down with force from the top of a building, at a speed of 20.0 m/s, and it hits the ground with a speed of 40.0 m/s.

Which of the following represents a virtual image?

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?

Astudent pushes a 60-n block across the floor for a distance of 10 m. how much work was done to move the block