A pulsed laser emits light in a series of short pulses, each having a duration of 44.0 ms. The average power of each pulse is 6.00 mW, and the wavelength of the light is 633 nm. a. Find the number of photons in each pulse.
b. Find the energy of each pulse.

Asubmarine has a "crush depth" (that is, the depth at which water pressure will crush the submarine) of 250 m. what is the approximate pressure (water plus atmospheric) at this depth? (recall that the density of seawater is 1025 kg/m3, g = 9.81 m/s2, and 1 kg/(ms2) = 1 pa = 9.8692 10-6 atm.) a. 34.8 atm b. 24.8 atm c. 25.8 atm d. 7.8 atm

In a series circuit the __ is the same at every point

Acalorimeter uses the principle that thermal energy flows from hotter material to colder material until both reach the same