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A 0.138-A current is charging a capacitor that has square plates 5.20 cm on each side. The plate separation is 4.00 mm.
(a) Find the time rate of change of electric flux between the plates.
_____ V·m/s
(b) Find the displacement current between the plates.
_____ A
A point charge q = +37.0 µC moves from A to B separated by a distance d = 0.178 m in the presence of an external electric field, Find the work done by the electric force
Struck from behind, a 950-kg stopped car accelerates from rest to 40km/h in 75 ms, What horizontal force on the head would accelerate it along with the rest of the body
A 5.00 X 10-2 kg mass with a charge of +0.75 mC is hung by a thin insulated thread. A charge of -0.9 mC is held 0.15 meters directly to right so that the thread makes an angle q with the vertical. What is the angle q and the tension in the string.
The wavelength of red helium-neon laser light is 632.8 nm. What is the wavelength of the laser light in the class that has an index of refraction of 1.5 in units of nm, What is the speed of the laser light in the glass in units of 10^8 m/s
In a pool game, the cue ball, which has an initial speed of 8 m/s, make an elastic collision with the eight ball, which is initially at rest. Find the direction of motion of the cue ball after the collision
The space shuttle is in a 400km - high circular orbit. It needs to reach a 700 km -high circular orbit to catch the Hubble Space Telescope for repairs. how much energy is required to boost it to the new orbit
What is the acceleration of a ball traveling horizontally with an initial velocity of 20 meters/second and, 2.0 seconds later, a velocity of 30 meters/second? A. 1.6 m/s^2 B. 3.0 m/s^2 C. 3.4 m/s^2 D. 5.0 m/s^2
A block of weight 43.6 N is hanging from a rope. The tension from the rope is pulling upward on the block. What is the magnitude of the tension in the rope
Beats of frequency 4Hz are heard when a tuning fork of frequency 1000Hz and a vibrating wire are sounded together. What is frequency of the wire.
How much kinetic energy is lost in the collision. compute the focal length of the mirror.
A person wearing the shoes has a mass of 65kg. Estimate the pressure exerted on a floor by one wide heel of area 16 cm2
A grating that has 3400 slits per cm produces a third-order fringe at a 24.0? angle. What wavelength of light is being used
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