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An air conditioner connected to a 120 V rms ac line is equivalent to a 11.0 resistance and a 1.50 inductive reactance in series.
a) Compute the impedance of the air conditioner.
b) Compute the average rate at which power is supplied to the appliance.
A cork on the surface of a pond bobs up and down two times per second on ripples having a wavelength of8.20cm. If the cork is10.5m from shore, how long does it take a ripple passing the cork to reach the shore?
A 3600-Ω resistor and a 1.1-µF capacitor are connected in series acrossa generator (60.0 Hz, 120 V rms). Determine the average powerdelivered to the circuit.
Two positive charges, one of magntude Q and the other of magnitude 2Q, and one negative charge of magnitude -Q are placed on a straight line, Find both the magnitude and direction of the net force on the positive charge on the left
A 2.10-kg block is suspended from a spring with a spring constant of 480.0 N/m. A 0.070-kg bullet is fired into the block from directly below with a speed of 130.0 m/s, Find the amplitude of the subsequent motion
A rock is thrown vertically upward from the edge of a cliff. The rock reaches a maximum height of 19.6 m above the top of the cliff before falling to the base of the cliff, How high is the cliff
The work function for Tin is 4.42 eV. Ultraviolet light with \lambda =50 nm is shone upon a Tin electrode
A loop of wire with radius R has charge density 3theta^2 , where theta is in radians. Write an integral (but do not solve) to find the electric potential at the center of the loop
A block is at rest on a plank whose angle can be varied. The angle is gradually increased from 0 deg. At 27.1°, Calculate the kinetic coefficent of friction between the block and the plank
a resistor is known to obey ohms law. when there is a current of 1.72 a in the resistor it has a voltage drop across
When a driver brakes an automobile, the friction among brake drums and brake shoes converts the car’s kinetic energy to heat. If a 1481 kg automobile traveling at 31 m/s comes to a halt, how much does the temperature rise in all of the four 3.8 kg ir..
What is the diameter of an air-filled coil with a 44 mH inductance, if it has 290 turns and the length of the coil is 76 cm
A 1.00 kg block Is resting against a light, compressed spring at the bottom of a rough plane inclined at an angle of 30 degrees. Kinetic friction between box and plane is 0.100. Suppose the spring is compressed 10 cm from its equilibrium length.
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