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.
Answers: 1
Physics, 21.06.2019 14:40, cheerthi16
A50.0-n box is sliding on a rough horizontal floor, and the only horizontal force acting on it is friction. you observe that at one instant the box is sliding to the right at and that it stops in 2.25 s with uniform acceleration. what magnitude force does friction exert on this box
Answers: 1
Physics, 21.06.2019 21:00, Dinojacob
What can be found in every skeletal muscle? a. nerves, bones, cartilage, and connective tissue b. tendons, cartilage, nerves, and blood vessels c. muscle fibers, nerves, connective tissue, and blood vessels d. tendons, nerves, blood vessels, and bones
Answers: 1
Physics, 22.06.2019 08:50, potatoismeh1
You are given a vector a = 125i and an unknown vector b that is perpendicular to a. the cross-product of these two vectors is a × b = 98k. what is the y-component of vector b?
Answers: 1
What is the energy output of a light source in J/s (joules per second) if it produces 324 photons pe...
History, 28.07.2019 08:00
Spanish, 28.07.2019 08:00
English, 28.07.2019 08:00
History, 28.07.2019 08:00
Biology, 28.07.2019 08:00
Mathematics, 28.07.2019 08:00
Mathematics, 28.07.2019 08:00
Mathematics, 28.07.2019 08:00