Consider a double star system under the influence of gravitational force between the stars. star 1 has mass and star 2 has mass . assume that each star undergoes uniform circular motion such that the stars are always a fixed distance apart. what is the , the period of the orbit?

1) when you rub your hands together quickly, the kinetic energy is converted to mechanical energy.2) thermal energy from the sun travels to earth as infrared waves.3) energy is transferred through the matter of space by electromagnetic waves. 4) when a match is burned, chemical potential energy is converted to thermal and radiant energy. 5) seismicwaves are caused by back and forth movement , or vibration, of an object. 6) mechanicalenergy in an engine changes thermal energy into kinetic energy to make a car move.

2. they have negligible mass.