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The light beam in the figure below strikes surface 2 at the critical angle, θc = 42o. Determine the angle of incidence, θ1.
In the Bohr model of the hydrogen atom an electron (charge e =1.6 x 1019 Coulomb) rotates around the nucleus in a circular orbit of 0.5 x 10-10 m. Find the time it takes for the electron to rotate once
we drive a distance of 1 km at 16 kmh. then we drive an additional distance of 1 km at 32 kmh. what is our average
Show that in the Bohr model, the frequency of revolution of an electron in its circular orbit around a stationary hydrogen nucleus is f = me4/4µ02n3h3.
the outer surface of the grill hood shown is at 47 degrees celsius and the emissivity is 0.93. the heat transfer
A container encloses 4.0 mol of an ideal gas that has molar mass M1 and 1.5 mol of a second ideal gas that has molar mass M2 = 3M1
Two polarizers are oriented at 73° to one another. Unpolarized light falls on them. What fraction of the light intensity is transmitted?
You want to double the resonance angular frequency of a series R-L-C circuit by changing only the pertinent circuit elements all by the same factor
A car with a total mass of 1.57 103 kg has wheels of radius 32.5 cm and moment of inertia 0.875 kg · m2. Find the car's rotational energy when the car is moving at a speed of 21.0 m/s
Tsunamis are fast-moving waves generated by underwater earthquakes. In the deep ocean their amplitude is barely noticeable, but upon reaching shore, they can rise up to the astonishing height of a six-story building. One tsunami, generated off the..
A circular loop of wire 55 mm in radius carries a current of 50 A. At the center of the loop, what are the following? The energy density, The magnetic field strength
A dipole with dipole moment 2.2 nC.m is oriented at 39o to a 4.6 MN/C electric field. What is the magnitude on the dipole?
A 92-kg fullback, running at 5.0 m/s, attempts to dive directly across the goal line for a touchdown. What is the velocity of the football players after the collision
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