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An LCR circuit contains a resistor with R =4200 Ω, a capacitor withC = 6000 µF, and aninductor with L = 2.0 mH, allconnected in series. The AC source has a frequency of 75 kHz.
a) What is the impedance of the circuit?b) What phase angle does the phasor describing the voltage across the voltage source make with the current phasor?
A bar of length .15 m, width .05 m and negligible height is spinning about its center of mass at 2 radians per second. what is their final angular velocity
A train is slowing down from 46 m/s to 12 m/s in 9.0 s. Assume constant acceleration. How far did it travel in this time
At the factory, a noon whistle is sounding with the frequency of 464 Hz. As a car travelling at 76 km/h approaches the factory, driver hears the whistle at frequency fi. After driving past the factory, the driver hears frequency ff. What is the chang..
suppose we have an lsquoideal parallel-plate capacitor made of two metal plates in vacuum. if we insert a layer of
A 0.031 kg bullet is fired verticallyat 210 m/s into a 0.15 kg baseball that is initially at rest. How high does the combined bullet and baseball rise after the collision, assuming the bullet embedsit self in the ball?
A 0.320 kg croquet ball makes an elastic head-on collision with a second ball initially at rest. The second ball moves off with half the original speed of the first ball. (a) What is the mass of the second ball? kg (b) What fraction of the original k..
The magnetic field of a cylindrical magnet that has a pole-face diameter of 3.3 cm can be varied sinusoidally between 29.6 T and 30.0 T at a frequency of 10 Hz. That is, as a function of time and in units of Tesla, such magnetic field is given by
the temperature in an electric oven is 192 degc. the temperature at the outer surface in the kitchen is 35.1 degc. the
A piano wire with mass 3.45g and length 85.0cm is stretched with a tension of 31.0N. Calculate the average power carried by the wave
Two particles of masses m1 and m2 are joined by a massless spring of natural length L and force constant k. Initially, m2 is resting on a table and I am holding m1 vertically above m2 at a height L. At time t=0, I project m1 vertically upward with in..
A fireworks rocket explodes at a height of 100 m above the ground. What is the total sound energy of the explosion
Particles of charge Q1 = +65 µC, Q2 = +43 µC, and Q3 = -80 µC are placed in a line. The center one, Q2, is 0.35 m from each of the others. find the net force on each charge due to the other two
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