The brightest light detected from the star antares has a wavelength of about 103 nm. what is the frequency of this light?

The relationship between frequency f, speed of light c and wavelength  is 


In our problem, the wavelength is  while the speed of light is , so the frequency of the light is

The third hammer 8 pounds

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.