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The time-varying current in an LC circuit where C = 11.9 µF is given by i(t) = (1.25 A) sin (1310t), where t is in seconds.
a) At what time after t = 0 does the current reach its maximum value?
b) What is the total energy of the circuit?
c) What is the inductance, L?
A ruby laser emits an intense pulse of light that lasts a mere 30 ns. The light has a wavelength of 690 nm, and each pulse has an energy of 200 mJ. (A) How many photons are emitted in each pulse? (B) What is the rate of photon emission, in photons pe..
A tennis player tosses a tennis ball straight up and then catches it after 3.40 s at the same height as the point of release. What is the maximum height (in m) the ball reaches
In the figure below, two parallel-plate capacitors A and B are connected in parallel across a 600 V battery. Each plate has area 70.0 cm2; the plate separations are 3.30mm, Find the magnitude of the electric field within the dielectric of capacitor..
If a car travelling at 30m/s will skid 18.00 m when its brakes lock and the car slides, how far would it skid if it is travelling at 40 m/s when its brakes lock? (This question is typical on some driver's license exams. Note: 10 m/s = 22 mph)
a person with a remote mountain cabin plans to install her own hydroelectric plant. a nearby stream is 3.00 m wide and
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A worker pushed a 27kg block 7.4m along a level floor at constant speed with a force directed 29° below the horizontal.
The rear end of an air conditioner dumps 1.2 * 10^7 J/hr of waste heat into the air outside a building. A fan assists in the removal of this heat. With what temperature does the air emerge
During 0.12 s, a wheel rotates through an angle of 2.34 rad as a point on the periphery of the wheel moves with a constant speed of 2.29 m/s
A cylindrical copper rod of length 1.30 m and radius 1.60 cm is insulated to prevent heat loss through its curved surface. find the rate at which entropy increases for the rod-reservoirs system
Two point charges are separated by d= 10 cm and have charges of q1= +2(mu)C and q2= -2 (mu)C, respectively, What is the magnitude of the electric force between the two charges
an electron moves along the z-axis with vz 4.4 x 107 ms. as it passes the origin what are the strength and direction
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