A 2.62 cm tall object is placed in 32.7 cm in front of a convex lens. The focal length is 19.2 cm. How far is the image from the lens?

The metric unit of electrical power is the watt volt ampere ohm

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

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?