What is the energy output of a light source in J/s (joules per second) if it produces 324 photons per second, and these photons have a wavelength of 143 nm? c = 2.998 x 108 m/s. h = 6.63 x 10-34 J-s. a) The energy output is 1.39e-18 J/s. b) The energy output is 4.50e-16 J/s. c) The energy output is 2.33e+20 J/s. d) The energy output is 4.29e-21 J/s. e) The energy output is 3.07e-38 J/s.
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Physics, 21.06.2019 16:40
Aforce of 34.5 newtons is applied to an object at an angle of 45 º with the horizontal. what is the force acting on the object in the horizontal direction?
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Physics, 21.06.2019 20:00
Experiment scenario 2: a biology student wants to conduct a study of how the amount of food affects the weight gain for mice. i have set up four cages with a mouse in each cage. fill in the boxes that would allow the biology student to complete the study correctly
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Physics, 22.06.2019 09:30
Astone is dropped from a cliff and falls 9.44 meters. what is the speed of the stone when it reaches the ground? a. 13.6 m/sec b. 1.39 m/sec c. 185 m/sec d. 9.80 m/sec
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Physics, 22.06.2019 09:40
When you jump from an elevated position you usually bend your knees upon reaching the ground. by doing this, you make the time of the impact about 10 times as great as for a stiff-legged landing. in this way the average force your body experiences is a) less than 1/10 as great. b) more than 1/10 as great. c) about 1/10 as great.d) about 10 times as great.
Answers: 1
What is the energy output of a light source in J/s (joules per second) if it produces 324 photons pe...
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