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A charge +q is located at the origin, while an identical charge is located on the x axis at x = +0.53 m. A third charge of +2q is located on the x axis at such a place that the net electrostatic force on the charge at the origin doubles, its direction remaining unchanged. Where should the third charge be located?
Consider a planet that, given its albedo and distance from the sun, should have a surface temperature of 110 K, but instead has a surface temperature of 130 K because it has an internal source of heat. How much more energy is the planet emitting than..
A parallel-plate capacitor has a plate area of 1cm^1 and a plate separation of 2.5 mm. To obtain an electric field of 1.0*10^6N/m between the plates, the magnitude of the charge on each plate should be.
Explain how much mechanical energy is lost due to friction acting on the runner? How far does he slide?
A coal fired plant generates 600 MW (5.18 x 10^13 J/day) of electric power. The plant burns 4.8 x 10^6 kg of coal each day. what is the ideal efficiency of this plant
A long, thin rod (length = 4.5 m) lies along the x axis, with its midpoint at the origin. find the magnitude of the net torque applied to the rod
An electron passes through a point 2.71 cm from a long straight wire as it moves at 36.3% of the speed of light perpendicularly toward the wire
A microscope has an objective lens with a focal length of 16.22 mm and an eyepiece with a focal length of 9.72 mm. what is the actual diameter of the red blood cell
If you were on a spaceship traveling a 0.5c away from a star, at what speed would the starlight pass you
Find out the x and y components of the force.
A sanding disk with rotational inertia I is attached to an electric drill whose motor delivers a torque of magnitude? calculate the angular velocity of the disk
question1sam whos mass is 70 kg takes off across level snow in his jet powered skis. the skis have a thrust of 204 n
A 1500 kg elevator moves upward with constant spped through a veticle distance of 25m. Explain how much work was done by the tension in the elevator cable?
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