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Solve the following problem given below:
Problem: What is the average power dissipated by a resistor of resistance R = 25 ohm in an LRC circuit for which the power factor is equal to 0.25 and the maximum voltage of the AC source is 8 V?
Show all work, use additional paper if necessary. Thank you.
A 7.5m long extension cord carries a current of 12 amps. The cord is made of two wires, carrying currents in opposite directions, separated by a distance of 4.9mm
What is the magnitude of the net force on the student. A student who weighs 470N is wearing a backpack that weighs 84N. The student is standing still on level ground.
A certain loudspeaker has a diameter of 45 cm. At what frequency would the wavelength of sound it emits in air be equal to its diameter.
a 20 cm tall object is placed in front of a concave mirror with a radius of 29 cm. the distance of the object to the
Determine how much work does the electric field do in moving a proton from a point with a potential of +160 Volt to a point where it is -70 Volt
A positively charged He+ atom has one electron in the shell and two protons in the nucleus. In a classic model of the atom, in a certain state, this electron is in a circular orbit around the nucleus by an angular momentum of 2.584×10-34Js. What is t..
A 1,000-W motor powers a hoist used to lift cars at a service station. If the original motor is replaced with one rated at 2,000 W, how long would it take to complete this task
A vehicle is negotiating a flat circular curve of radius 50 meter with a speed of 20 m/s. The maximum centripetal force (provided by static friction) is 1.2 x 10^4 N. Determine what is the mass of the car
A novice skier, starting from rest, slides down a frictionless 28.00 incline whose vertical height is 170. How fast is she going while she reaches the bottom?
two divers jump from a 5- platform. one jumps upward at 1.50 and the second steps off the platform as the first passes
A yo-yo has a rotational inertia of 970 g·cm2 and a mass of 104 g. Its axle radius is 3.15 mm, What is the magnitude of its linear acceleration
A potential difference is applied between the electrodes in a gas discharge tube. In 1.7 s, 3.2 1016 electrons, What is the current in the tube
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