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A positively charged object with a mass of 0.121 kg oscillates at the end of a spring, generating ELF (extremely low frequency) radio waves that have a wavelength of 4.88*10 7 m. The frequency of these radio waves is the same as the frequency at which the object oscillates. What is the spring constant of the spring?
A groove on a monophonic phonograph record wigges laterally such tht its amplitude and frequency more or less ocresspond to the sound that is recorded. If at a given moment the needles is moving through the groove at 0.50 m/s, what would be the wiggl..
A steel ball is fastened to a cord and is released from rest when the string is horizontal. At the bottom of its path theball strikes a steel block initially at rest on a frictionless surface as indicated. The collision is elastic.
An electron has a velocity of 6.0 x 10^6 m/s in the positive x direction at a point where the magnetic field has the components Bx=3.0T, What is the magnitude of the acceleration at this point
the equation of continuity states the mass flow rate has the same value at every position along a tube that has a
An ice cube of mass ma and specific heat Ci is initially at temperature T1, where T1 is less than 273K. If L is the latent heat of fusion of water, and the specific heat of water is Cw, how much energy is needed to convert the ice cube to water at ..
A 54g ice cube can slide without friction up and down a 33 degree slope. The ice cube is pressed against a spring at the bottom of the slope, compressing the spring 11cm . The spring constant is 25 N/m When the ice cube is released, what distance wil..
An average force of 201 N is exerted to draw the string back 1.3 m. unless otherwise directed, imagine that air resistance is negligible. Illustrate energy bar graphs to solve the difficulty .
An electron is launched at 4.7x10 6 m/s into a 2.8 T magnetic field. What is the diameter of its orbit
Attached to each end of a thin steel rod of length 1.20 m and mass6.40 kg is a small ball of mass 1.06 kg.compute the retarding torque
The volume of a gas is halved during an adiabatic compression that increases the pressure by a factor of 2.5
A 8.84-g bullet is moving horizontally with a velocity of +346 m/s, where the sign + indicates that it is moving to the right, What is the velocity of the second block after the bullet imbeds itself
question what is the magnitude of an electric field that balances the weight of a plastic sphere of mass 6.2 g that has
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