Two conducting wires of the same material are to have the same resistance. One wire is 23.0 m long and 0.44 mm in diameter. If the other wire is 0.28 mm in diameter, how long should it be

What is the temperature in degrees celsius of a substance with a tempature of 49k

Two steel balls, each of mass m, are welded to a light rod of length l and negligible mass and are initially at rest on a smooth horizontal surface. a horizontal force of magnitude f is suddenly applied to the rod as shown. determine (a) the instantaneous acceleration a of the mass center g and (b) the corresponding rate at which the angular velocity of the assembly about g is changing with time.

What is an example of static friction