1. A laser used in cutting or drilling metals produces 10 ns pulses at 1.00 J per pulse.
(a) If the frequency of pulses is 10 Hz (10 pulses per second), what is the average power output of the laser?
(b) What is the peak power of each pulse?
(c) If the laser beam is focused to a spot with a 10 micrometer diameter, what is the peak light intensity at the spot? Please show work.