Physics, 21.03.2020 05:29 lorenaandreahjimenez
"A light wave passes from air into water. Which of the following is true? 1. Its frequency remains unchanged, but its wavelength decreases. 2. Its wavelength remains unchanged, but its frequency decreases. 3. Its wavelength remains unchanged, but its frequency increases. 4. None of these 5. Both its wavelength and its frequency remain unchanged."
Answers: 3
Physics, 22.06.2019 08:30
Does anyone know how to solve this problem? i really need . i made an attempt but i just cant get it. a metal rod is 25.000 cm long at 25.0 degrees celsius. when heated to 102.0 degrees celsius, it is 25.054 cm long. what is the coefficient of linear expansion for this metal.
Answers: 3
Physics, 22.06.2019 14:10
Amachinist turns the power on to a grinding wheel, at rest, at time t = 0 s. the wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 96 rad/s. the wheel is run at that angular velocity for 40 s and then power is shut off. the wheel slows down uniformly at 1.5 rad/s2 until the wheel stops. in this situation, the time interval of deceleration is closest to:
Answers: 3
Physics, 22.06.2019 15:00
What happens when a rubber rod is rubbed with a piece of fur?
Answers: 1
Physics, 22.06.2019 16:30
In a classical model of the hydrogen atom, the electron moves around the proton in a circular orbit of radius 0.053 nm. what is the electron's orbital frequency? what is the effective current of the electron?
Answers: 3
"A light wave passes from air into water. Which of the following is true? 1. Its frequency remains u...
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