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Physics, 22.06.2019 16:40
Acapacitor is storing energy of 3 joules with a voltage of 50 volts across its terminals. a second identical capacitor of the same value is storing energy of 1 joule. what is the voltage across the terminals of the second capacitor?
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Physics, 22.06.2019 19:00
The law of reflection states that the angle of reflection is equal to the angle of
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Physics, 22.06.2019 22:00
Aparticle of mass m is placed in a one-dimensional box of length l. the box is so small that the particleâs motion is relativistic, so that e p2/2m is not valid. (a) derive an expression for the energy levels of the particle using the relativistic energyâmomentum relation and the quantization of momentum that derives from connement. (b) if the particle is an electron in a box of length l 1.00 1012 m, nd its lowest possible kinetic energy. by what percent is the nonrelativistic formula for the energy in error?
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Physics, 22.06.2019 22:30
The drag force, fd, imposed by the surrounding air on a vehicle moving with velocity v is given by fd = cdaĎv 2/2 where cd is a constant called the drag coefficient, a is the projected frontal area of the vehicle, and Ď is the air density. an automobile is moving at v = 80 kilometers per hour with cd = 0.28, a = 2.3 m2, and Ď = 1.2 kg/m3.
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Which two forces act over very small distances...
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