Calculate the number of photons that would be contained in a laserpulse with a wavelength of 287 nm that contained 4.35 mJ of energy. Plank's constant is 6.626 x 10-34 J•s. 2.87 x 10-7 photons 3.00 x 108 photons 1.59 x 10-16 photons 6.28 x 1015 photons 7.41 x 1012 photons

3.46 ⋅ 10 − 19 J

Explanation:

The energy of a photon is proportional to its frequency,

answer

the ions in solute supperate from eachouthere

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

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