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Consider a circuit consisting of a battery of voltage V and a parallel plate capacitor of capacitance of C0. If a dielectric slab with dielectric constant k is inserted, what is the energy delivered by the battery? Also, how much work have you done inserting the slab?
A point charge of magnitude q is at the center of a cube with sides of length L. find the electric flux through each of the six faces of the cube
The power required by an ice maker is 225 W and is the rate at which it does work. The ice maker operates like a refrigerator or an air conditioner and has a coefficient of performance of 3.60.
A student is reading a lecture written on a blackboard. The lenses in her eyes have a refractive power of 56.11 diopters, and the lens-to-retina distance is 1.791 cm. (a) How far is the blackboard from her eyes? (b) If the writing on the blackboard i..
a persons lens prescription for glasses is 3 d. if the glasses sit 1.9 cm from the eye what is that persons near
A dive bomber has a velocity of 230 m/s at an angle theta below the horizontal. When the altitude of the aircraft is 2.15 km, it releases a bomb, Find the angle theta
Two identical point charges are fixed at opposite corners of a square whose sides have a length of A test charge, Determine the speed of the test charge when it reaches the center of the square
If John Glenn weighed 640 N on Earth's surface, a) how much would he have weighed if his Mercury spacecraft had (hypothetically) remained at twice the distance from centre of Earth? b) Why is it said that an astronaut is never truly "weightles".
question1a small object with the mass of 380 mg carries a charge of 35.0 nc and is suspended by a thread between
A wire of length L = 15 is bent into a semi circle . If the total charge on the wire is -45nC, determine the electric field at the center point of the semicirlce.
The threshold of dark-adapted (scotopic) vision is 4.0 multiplied by 10-11 W/m2 at a central wavelength of 500 nm. how many photons per second enter the eye
A tennis ball with a speed of 11.9 m/s is thrown perpendicularly at a wall. what is the average magnitude of acceleration of the ball while it is in contact with the wall
Two identical uniform bricks of length 26 m are stacked over the edge of a horizontal surface. What maximum overhang is possible for the two bricks (without tipping)
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