Calculate the number of photons emitted each second from a laser pointer. the 17.7 milliwatt laser pointer is green, with a wavelength of exactly 532 nm. note: to input large numbers (scientific notation) into canvas, you will need to use "e" for example, 1 billion > 1e9 note: required precision is 2%.

Explanation:

given data:

power = 17.7 milliwatt

p = 17.7 *10^{-3} watt

wavelength = 532 nm = 532*10^{-9} m

energy of photon

h is plank constant = 6.626*10^{-34} JOULE/SEC

C =3*10^8 m/sec

let n is m=number of photon emiited per sec

we knwo that

p = ne

28. evolution

29. environment, survive, offspring  

explanation:

power out to power in less than 100%