How much heat is released when 25.0 grams of liquid copper at its freezing point of 1,085°c changes to solid? the latent heat of fusion of copper is 205.0 j/g.

Which statement best describes how private industry decides where to spend the money on research and development

An electric current in a wire will push or pull on a permanent magnet. which statement best explains how an electric current creates an electromagnetic force on another magnet?

Acharge of 8.4x10^-4 c moves at an angle of 35 degrees to a magnetic field that has a field strength of 6.7x10^-3 t. if the magnetic force is 3.5 x10 ^-2 n, how fast is the charge moving?