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A 1625 kg car, having run out of gas, is at rest on a level surface. Assuming an opposing frictional force of -765 kg m/s^2, if a person attempty to push the car due west by exterting a force of 765 kg m/2^2.
- If the person applies a force of 765 kg m/s^2 for 8 seconds, how much work did he do on the car?
- If he exerts a force of 2715 kg m/s^2 to get the car moving, what will be the acceleration of the car?
The potential at the center of a uniformly charged ring is 52 kV, and 15 cm together the ring axis the potential is 41 kV. Find the ring's radius and its total charge.
A 0.25 kg harmonic oscillator has a total oscillation energy of 9.9 J. If the oscillation amplitude is 20.0 cm, what is the oscillation frequency
Consider three identical metal spheres, A, B, and C. Sphere A carries a charge of +10q. Sphere B carries a charge of -7q. Sphere C carries no net charge. Spheres A and B are touched together and then separated.
A 15 kg block is accelerated at 1.7 m/s2 up a frictionless plane inclined at 5.0° to the horizontal, find the change in the block's mechanical energy
An electron beam in an oscilloscope is deflected by the electric field produced by oppositely charged metal plates. If the electric field between the plates is 2.75 105 N/C directed downward, what is the magnitude and direction of the force on eac..
The gearshift lever AB for the transmission of a sports car has position vector r whose line of action passes through points A and B. The driver applies the force F to the knob B of the lever to shift gears. Find out the magnitude of the component..
An angry rhino with a mass of 2300 kg charges directly toward you with a speed of 4.30 m/s. Determine the speed of the ball after it bounces back elastically toward you
Of the charge Q initially on a tiny sphere, a portion q is to be transferred to a second, For what value of q/Q>0.5 will the electrostatic force between the two parts have 1/2 of the maximum possible value
A capacitor has parallel plates of area 12 cm2 separated by 2.0mm . The space between the plates is filled with polystyrene (K=2.6, Em=2.0×107V/m). Find the permittivity of polystyrene
With what frequency should the tip be tapped to make the strip oscillate with maximum amplitude?
How does the thermal velocity scale with the size of the molecule diffusing. determine the scaling law based on the resulting equation
a monochromatic beam of light of wavelength 600nm is incident on a diffraction grating with a slit spacing of 1.7*10^-4cm
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