A crane uses a system of pulleys with a mechanical advantage of 27. An input force of 8650 N is used to lift a pile of steel beams. What is the weight of the girders? ( show all work )
( do it very well and ill mark you brainlist )

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.

The big glowy thing is called the sun it is a star in our galaxy and is over 1 million degrees