Sakena yacoobi was born in afghanistan and educated in the united states. she started working with the international rescue committee (irc) in pakistan during the mid-1990s. "when you see the joy and excitement in the students' faces, when you see them sitting on dirt floors, under trees, and in dark basements-anywhere to get an education, you forget all your troubles," yacoobi has said of her work.

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.