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An AC generator produces a sinusoidal voltage at 60 Hz with amaximum of 120 V.
a. What is the average voltage?
b. What is the rms voltage?
c. If it were a DC generator with the same maximum of 120 V, what would be the “rms” voltage?
When a current flows in an aluminum wire of diameter 2.45 mm, the drift speed of the conduction electrons is 1.05 × 10-4 m/s. What is the electron current in the wire
A flywheel comprises a uniform circular disk with a moment of inertia of 5.70×101 Kg m2. What energy (in Joules) must this force dissipate to stop the wheel
A 109 V potential difference is applied to a space heater whose resistance is 12 when hot. At what rate is electrical energy transferred to heat
a fire hose exerts a force on the person holding it. this is because the water accelerates as it goes from the hose
A certain animal species is equally likely to have blue eyes or brown eyes. What is the entropy of this sample
When a bow and arrow are cocked, a force is applied to the string to pull it back. Is the energy of the system increased? Explain
Suppose that the air bubble is always in thermal equilibrium with the surrounding water.
How many packs of shingles can the contractor lift before he begins to slide down the roof assuming the following Contractor weights and values for the coecient of static friction exists between the contractor and the roof.
An X-ray photon with a wavelength of 0.110 nm scatters from a free electron at rest.The scattered photon moves at an angle of 165° relative to its incident direction. Find the initial momentum of the photon
A standard 100 W (120 V) lightbulb contains a 9.40 cm-long tungsten filament. The high-temperature resistivity of tungsten is 9.0*10^-7Om. What is the diameter of the filament?
You are asked to design a spring that will give a 1200-kg satellite a speed of 3.50 m/s relative to an orbiting space shuttle. What distance must the spring be compressed
A charge of 910 C was passed through a wire in 3.10min. What was the average electric current during that interval
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