A 17 N box is carried across the room a distance of 9.1 m. How much work was performed? A. 0 J
B. .54 J
C. 1.8 J
D. 154.7 J

Aspring with a mass of 2 kg has a damping constant 14 kg/s. a force of 3.6 n is required to keep the spring stretched 0.3 m beyond its natural length. the spring is stretched 0.6 m beyond its natural length and then released. find the position of the mass at any time t. (assume that movement to the right is the positive x-direction and the spring is attached to a wall at the left end.)

An input force of 7 n is applied to a machine with a mechanical advantage of 1.75. what is the maximum the machine could lift? 12.25 n7n7.25 n26.2 n

What is hidden during a lunar eclipse? isn't the moon hidden?