In an optical microscope, the objective lens has 0.150 cm focal length. For an object at 0.155 cm distance from the objective lens, what is the overall magnification if an eyepiece of a magnification of 8.00 is used

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

Asap and show ! a 14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.

A20 cm long spring is attached to a wall. the spring stretches to a length of 22 cm when you pull on it with a force of 100 n. what is the spring constant