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A small sphere with mass 9.00 μg and charge -4.30μC is moving in a circular orbit around a stationary sphere that has charge +7.50μC.
If the speed of the small sphere is v = 5900 m/s , what is the radius of its orbit? Treat the spheres as point charges and ignore gravity.
The capacitance of a plate capacitor is proportional to the dielectric constant. An electric field can induce dipoles in a material. Stored energy and voltage of a capacitor with a givencharge are proportional to each other. A dielectric material doe..
A certain atom has 92 protons. Assume that the nucleus is a sphere with radius 7.10 fm and with the charge of the protons uniformly spread through the sphere. At the nucleus surface find the magnitude
A ball with a mass of .100 kg is on a spring that is 10.0 m above the ground with a spring constant of 543 N/m and has been compressed .125 m. Determine the initial kinetic energy of the ball
a car travels along a straight line at a constant speed of 46.5 mih for a distance d and then another distance d in the
What is the direction of the current - by changing the magnetic field - center of a conducting wire loop in a horizontal plane with the north end of the magnet toward the loop.
A very light rigid rod with a length of 0.692 m extends straight out from one end of a meter stick. Determine the period of oscillation of the system
A mass spectrometer is a device which consists of a velocity selector, with crossed electric and magnetic fields E = 950 V/m, B = 0.93 T. Calculate the radius for a singly ionized charged particle with a mass m = 2.18 × 10-26 kg
A movig particle encounters an external electric field that decreases its kinetic energy from 9380 eV to 7310 eV as the particle moves from position A to position B. The electric potential at A is -66.0 V, and that at Bis +28.0 V.
What is the direction of the induced current in a wire loop that is over a magnetic field, in which the magnetic field is increasing but the loop is not moving?
estimate the spacing between the two irrandiance maxima closest to the geometric of a plain wave illuminated
A centripetal force of 250N acts on a 1,000kg satellite moving with a speed of 5,000m/s in a circular orbit around a planet. What is the radius of its orbit
A swimmer is heading straight for the other shore of a river with a velocity of vs=0.6 m/s relative to the water, How far downstream does she end up
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