Light travels in a straight line at a constant speed of 300000 m/s. What is the acceleration of light?

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?

What is the kinetic energy of a baseball moving at a speed of 40 m/s if the baseball has mass of 0.15 kg?

Use the illustration to describe how the electromagnetic spectrum changes as its frequency moves from radio waves to higher energy gamma waves in terms of wavelength and amplitude.