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We have a parallel plate capacitor with two plates containing charges +Q and -Q a distance d = 2.00 cm apart. We release a proton from rest at point A, just above the lower plate. At point B, just before the proton strikes the upper plate, the proton has a kinetic energy of 1.46 x 10?18 J. A proton has a mass of 1.67 x 10?27 kg and a charge of 1.60 x 10?19 C. What is the magnitude of the electric field between the plates (in V/m)?
Why is it better for some purposes to use a medium size telescope on a mountain instead of a telescope in space?
What value of capacitance will ensure that an output voltage stays within 3 percent of the rated 22v . find an electric field between them and surface charge density on the plate.
A light ray passes from water into air. The angle of incidence is 37o. Find the angle of refraction in the air
Charges of 4.0 µC and -6.0 µC are placed at two corners of an equilateral triangle with sides of 0.10 m. At the third corner, what is the electric field magnitude created by these two charges
A 0.14- kg block on a wooden table is given a sharp blow with a hammer. The block then slides across the table to a stop. How far does the block go
At the top of a 30m hill is a 5kg mass. It is loaded into a spring cannon. what was the gravitational potential energy of the mass with respect to the bottom of the hill
An object with mass 3.2kg is executing simple harmonic motion, attached to a spring with spring constant 260N/m, Calculate the maximum speed attained by the object
Police investigators, examining the scene of an accident involving two cars, measure 72-m-long skid marks of one of the cars, Estimate the initial speed of that car assuming a level road
A geologist finds that a Moon rock whose mass is 9.64kg has an apparent mass of 6.25kg when submerged in water. What is the density of the rock
The plates of a parallel-plate capacitor each have an area of 0.1 m2 and are separated by a 1 mm thick layer of paper. Find the electric field between the plates
The density of free electrons in gold is 5.90 x 10^28 m-3. The resistivity of gold is 2.44 x 10-8 at a temperature of and the temperature coefficient of resistivity is 0.004 ()-1. A gold wire, 1.30mm in diameter and 27cm long, carries a current of..
What should be the minimum initial speed of the dart so that combination makes a complete circular loop after the collision. find the minimum diameter of the raft that would prevent the diamond from being seen.
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