Lithium Atomic mass = 7 amu
Sodium
Atomic mass=23 amu
Potassium
Atomic mass= 39 amu

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.

Isuck at math i am no sorry

Because the sun is the biggest and if the sun orbits the earth we will be dead probably