A current of 8 A exists in a copper (Cu) wire which has a diameter of 5 mm. What is the current density? Each atom of copper contributes one conduction electron, and the average thermal speed r k T m of an electron is 2.4 × 106 m/s . The mass

The system is released from rest with the cable taut, and the homogeneous cylinder does not slip on the rough incline. determine the angular acceleration of the cylinder and the minimum coeffi cient s of friction for which the cylinder will not slip.

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt

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