Physics Question Two concrete spans of a 180 m long bridge are placed end to end so that no room is allowed for expansion. If the temperature increases by 20◦C, what is the height to which the spans rise when they buckle? Assume the thermal coefficient of expansion is 1.2 × 10^−5(◦C)^−1. Answer in units of m.

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.