Which law of motion accounts for the following statement? "a planet stays in orbit around the sun." first law second law third law

What is the kinetic energy of a 10-kg bicycle moving at 10 m/s

Acoil formed by wrapping 80 turns of wire in the shape of a square is positioned in a magnetic field so that the normal to the plane of the coil makes an angle of 28.0° with the direction of the field. when the magnetic field is increased uniformly from 200 µt to 600 µt in 0.400 as, an emf of magnitude 80.0 mv is induced in the coil. what is the total length of the wire?

Phase changes are chemical changes. true or false