Which of the following questions could best be answered by the work of Charles Kuen Kao?
A. How are mirrors used inside a camera?
B. How quickly are stars in the Milky Way moving away from Earth?
C. What is the best way to deliver broadband Internet service to rural
areas?
D. How will climate change affect the strength of hurricanes in the
future?

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.