Physics, 22.08.2019 16:20 gabrielar80
What is the wavelength of 7.0-tev protons? a) 550 nm b) 750 nm c) 5.4x10^-15 m d) 3.2x10^-18 m e) 1.8x10^-19 m
Answers: 1
Physics, 20.06.2019 18:02
Anyone who is an expert in for the record, iβm having difficulty understanding the pictures.
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Physics, 21.06.2019 21:30
Aparticle with mass 1.81Γ10β3 kg and a charge of 1.22Γ10β8 c has, at a given instant, a velocity vβ =(3.00Γ104m/s)j^. what are the magnitude and direction of the particleβs acceleration produced by a uniform magnetic field bβ =(1.63t)i^+(0.980t)j^?
Answers: 2
Physics, 22.06.2019 00:30
Aball tossed vertically upward from the ground next to a building passes the bottom of a window 1.8 s after being tossed and passes the top of the window 0.20 s later. the window is 2.0 m high from top to bottom. what was the ball's initial velocity? the unit vector j^ is directed upward. how far is the bottom of the window from the launch position? how high does the ball rise above the launch position?
Answers: 1
Physics, 22.06.2019 10:40
As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. there is no one around to , so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley. you pull up on the rope to lift the box. use g for the magnitude of the acceleration due to gravity and neglect friction forces. once you have pulled hard enough to start the box moving upward, what is the magnitude f of the upward force you must apply to the rope to start raising the box with constant velocity? express the magnitude of the force in terms of m, the mass of the box.
Answers: 1
What is the wavelength of 7.0-tev protons? a) 550 nm b) 750 nm c) 5.4x10^-15 m d) 3.2x10^-18 m e) 1...
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