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a string is wound on a uniform metallic ring which can rotate about an axis through its center. The mass of the ring is 2.0 kg and its radius is 22 cm. The string is pulled with a force of 25 Newtons. If the ring is initially at rest, what are its angular velocity and angular displacement after 8 seconds?
A constant force of 25 N is applied as shown to a block which undergoes a displacement of 7.5 m to the right along a frictionless surface while the force acts. What is the work done by the force
An inductor is connected to the terminals of a battery that has an emf of 12.0 V and negligible internal resistance. What is the resistance R of the inductor
suppose the straight-line distance between new york and san francisco is 4.6 x106m neglecting the curvature of the
A 0.047 H inductor is wired across the terminals of a generator that has a voltage of 2.1 V and supplies a current of 0.021 A. Find the frequency of the generator
A meter stick is found to balance at the 49.7-cm mark when placed on a fulcrum. When a 67.0-gram mass is attached at the 14.0-cm mark, What is the mass of the meter stick
What is work done by the non-conservative force
A 6.50*10^4 kg space probe is traveling at a speed of 10000 m/s through deep space. What is the final speed of the probe
a 46-cm-long wire with a mass of 10.4 g is under a tension of 52.5 n. both ends of the wire are held rigidly while it
An LC circuit oscillates at a frequency of 19.7 kHz. What is the maximum charge (in C) on the capacitor
a car is traveling over a hill. if using a cartesian coordinate system with origin o at the top of the hill the hills
a laser beam with a wavelength of 532 is directed exactly perpendicular to a screen having two narrow slits spaced
Estimate the wavelengths of the first three spectral lines in the Lyman spectral series for hydrogen. What energies (eV) do photons with these wavelengths have?
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