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A circuit consists of a 135 ? resistor in series with a 38.5 mH inductor and a 50.0 V ac generator. The power dissipated by the circuit is 13.5 W. What is the frequency of the generator?
Is it safe to use zero for the initial velocity in equations?
In each of the following cases, the mass is 7.83 kg and the radius is 7.50 cm. What is the moment of inertia (kg m^2) of a solid cylinder rotating about an axis parallel to the symmetry axis but passing through the edge of the cylin..
An object of mass .10kg makes an elastic head on collision with a stationary object with a mass of .15 kg. What is the initial velocity of the .10kg object
The sun is in the sky at an angle of 22 degrees from vertical. You’ve built a column exactly 12.0 meters in height. You stand on the ground at the end of the column’s shadow. (THIS is where the concepts of sin, cos, and tan originally came from.....)..
A spring with a constant k of 30 N/m is stretched a distance of 20 cm (0.20m) from its original unstretched position
Radioactive isotopes frequently occur together in mixtures. Assume a 400g sample contains, with a half-life of 12 days, and, with a half-life of 4.5 days. If there are firstly twice as many calcium atoms as there are barium atoms, what will be the ra..
A fireworks rocket is launched vertically upward at 40 m/s. At the peak of its trajectory, When does the second fragment reach the ground
In 1980, over San Francisco Bay, a large yo-yo was released from a crane. What was the magnitude of the acceleration of the yo-yo during (a) its fall
A neutral atom has electrons completely filling the shells with principal quantum number n = 1, 2, and 3. How many protons does the nucleus contain
Determine the same situation, but now let the initial speed v0 of the first ball be given and treat the height h of the building as an unknown. What should the height of the building be for both balls to reach the ground at the same time for v0= 8..
a block of mass 12.0 kg is connected to a spring on a horizontal frictionless surface. write the expression for the position of the block as the function of time
Gamma rays with the very high energy of 2.2×10^13 eV are occasionally observed from distant astrophysical sources. What is the frequency corresponding to this photon energy
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