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Question: A series circuit consists of an ac source of variable frequency, a 115- Ω resistor, a 1.25-µF capacitor, and a 4.50-mH inductor. Find the impedance of this circuit wben the angular frequency of the ac source is adjusted to :
(a) The resonance angular frequency;
(b) Twice the resonance angular frequency;
(c) Half the resonance angular frequency.
A system consisting of an ideal gas at the constant pressure of 120kPa gains 800J of heat, Find the change in volume of the system
A constant, uniform magnetic field directed into this sheet exists in the region to the right of the y axis. Calculate the radius of the particles path
An object is placed 12.6 cm in front of the cornea. find the image distance for the image formed by the cornea alone
Starting from rest, a 5.00 kg block slides 2.50 m down a rough 30.0° incline. find the work done by the friction force between block and incline
An 8.70-kg block slides with an initial speed of 1.80 m/s down a ramp inclined at an angle of 22.2 deg with the horizontal. Use energy conservation to find the distance the block slides before coming to rest
A small metal bead, labeled A, has a charge of 29nC . It is touched to metal bead B, initially neutral, so that the two beads share the 29nC charge, What is the charge qA and qB on the beads
A circuit contains a 150-O resistor, a 0.0570-H inductor, a 0.420-µF capacitor, and a source of time-varying emf connected in series. What is the average power drawn from the source of emf
70-kg astronaut is loaded so heavily with equipment that on Earth he can jump only to a height of 10 cm. How high can he jump on the moon
A projectile is fired at v0 = 394.0 m/s at an angle of θ = 64.2o with respect to the horizontal, How far will the projectile travel in the horizontal direction, R
After a 0.839 nm x-ray photon scatters from a free electron, the electron recoils with a speed equal to 1.48E+6 m/s. Through what angle was the photon scattered
An airplane can be made invisible to radar by coating the plane with a thin layer of an antireflective material. If radar waves have a wavelength of 3.0 cm.
A star is moving away from Earth at a speed of 2.3 108 m/s. What is the wavelength as measured by an Earth observer
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