An uncharged capacitor and a resistor are connected in series to a battery, as shown in the figure above. If e m f = 11.0 V, C = 4.70 µF, and R = 7.10 105 Ω, find the following.
(a) the time constant of the circuit
(b) the maximum charge on the capacitor
(c) the charge on the capacitor after 5.70 s
(d) the potential difference across the resistor after 5.70 s
(e) the current in the resistor at that time
Answers: 3
Physics, 21.06.2019 23:00
The roller coaster from problem #1 then tops a second hill at 15.0 m/s, how high is the second hill? 91.5 m 79.2 m 80.0 m 68.5 m
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Suppose that an electromagnetic wave which is linearly polarized along the x−axis is propagating in vacuum along the z−axis. the wave is incident on a conductor which is placed at z > 0 region of the space. the conductor has conductivity σ, magnetic permeability µ and electric permittivity ε. (a) find the characteristic time for the free charge density which dissipates at the conductor. (b) write the maxwell equations and derive the wave equation for a plane wave propagating in a conductor. (c) find the attenuation distance at which the incident amplitude reduces to e ^−1 of its initial value. (d) find the electric and magnetic fields inside the conductor. 8 (e) find the power loss per area of the incident electromagnetic wave at the surface of conductor.
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Physics, 22.06.2019 03:00
Arotating space station is said to create “artificial gravity”—a loosely-defined term used for an acceleration that would be crudely similar to gravity. the outer wall of the rotating space station would become a floor for the astronauts, and centripetal acceleration supplied by the floor would allow astronauts to exercise and maintain muscle and bone strength more naturally than in non-rotating space environments. if the space station is 200 m in diameter, what angular velocity would produce an “artificial gravity” of 9.80 m/s^{2} 2 at the rim?
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Physics, 22.06.2019 15:10
Auniform crate c with mass mc is being transported to the left by a forklift with a constant speed v1. what is the magnitude of the angular momentum of the crate about point a, that is, the point of contact between the front tire of the forklift and the ground
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An uncharged capacitor and a resistor are connected in series to a battery, as shown in the figure a...
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