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Answers: 2
Physics, 21.06.2019 21:00
A150 w lamp emits light of wavelength 590 nm uniformly in all directions. what is the photon flux (photons per unit area per unit time) on a small screen at a distance 2.3 m from the lamp? assume the photons are uniformly distributed over the surface of a sphere of radius 2.3 m.
Answers: 2
Physics, 21.06.2019 22:30
Distinguish between a transverse wave and a longitudinal wave.
Answers: 1
Physics, 22.06.2019 03:00
An electric current is flowing through the cord below.what will happen to this current if a magnet is brought near the cord? a. the electric current will stop flowing. b. it will exert a force on the voltage. c. the resistance of the wire will decrease. d. it will exert a force on the electric current.
Answers: 2
Physics, 22.06.2019 04:00
Simple machines can a. increase force only b. decrease force only c. increase or decrease force
Answers: 3
Mathematics, 01.09.2020 19:01
Mathematics, 01.09.2020 19:01
English, 01.09.2020 19:01
Mathematics, 01.09.2020 19:01
Mathematics, 01.09.2020 19:01
Mathematics, 01.09.2020 19:01