Calculate the resistivity of a wire that is 10 nu long, has resistance of 5
ohms and has a diameter of 3 millimeters(1000mm in a m).

A500g object falls off a cliff and losers 100 j from its gravitational potential energy store. if the gravitational field strength g=9.8n/kg, how high is the cliff?

An object moves from the position +34m to the position -15m in 15 seconds. what is it's total displacement? what is it's average velocity?

J. j. thomson’s experiment disproved the theory that an atom