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The current in a resistor is given by I = (5.14) sin (70 pi t) when a voltage given by V = (180V) sin (70 pi t) is applied to it.
What is the period of the voltage source?
T = ______s
The resistance value is R = 35.02 ohms
The frequency of the voltage source is f - 35 Hz
An oscillator with a mass of 420 g and a period of 0.900 s has an amplitude that decreases by 1.90 percent during each complete oscillation.
A mass of .500 kg is connected to a spring of spring constant 30 N/m. The oscillation begins by pulling the mass to the right to amplitude 0.40 m before release, what is the damping constant of the oscillation
Throughout three hours one winter afternoon, when outside temperature was 9° C, a house heated by electricity was kept at 21° C with the expenditure of 46kwh (kilowatt•hours) of electric energy.
On a clear day the electric ?eld in the atmosphere near the earth's surface is 100 N/C, What is the potential at the top of a man's head if the man is 2 m tall and is standing
A rotating cylinder about 16 {rm km} long and 7.40 km in diameter is designed to be used as a space colony. With what angular speed must it rotate so that the residents on it would experience the same acceleration due to gravity as on Earth.
Two point charges totaling 9.00 µC exert a repulsive force of 0.250 N on one another when separated by 0.537 m. What is the charge on each
Mattwe pulls his little sister sarah in a sled on an icy surface, with a force of 60 N at an angle of 37 ° upward from the horizontal. If he pulls her a distance of 12m, then determine the work done by matthew?
A narrow beam of light with wavelengths from 450 nm to 700 nm is incident perpendicular to one face of a 32.00, What is the angular spread of the beam after passing through the prism
As you eat your way through a bag of chocolate chip cookies, you observe that each cookie is a circular disk of diameter of 5.70 ± 0.02 cm, Find the average volume of a cookie
What are changes in the object's momentum and velocity. How much work is done if the similar tension is directed parallel to the snow.
At time t = 0, a ball is struck at ground level and sent over level ground. At what initial angle above the horizontal is the ball launched
A firefighting crew uses a water cannon that shoots water at 29.0m at a fixed angle of 52.0 degrees above the horizontal. How far from the building should they position their cannon
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