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In a region of space, the electric field E→ = Eoxi^ + Eoyj^). Consider an imaginary cubical volume of edge 'a' with its edges parallel to the axes of coordinates. Now,
(A) the total electric flux through the faces 1 and 3 is Eoa3
(B) the charge inside the cubical volume is 2εoEoa3
(C) the total electric flux through the faces 2 and 4 is 2E0a3
(D) the charge inside the cubical volume is εoEoa3
A 0.629-nm photon collides with a stationary electron. After the collision, the electron moves forward and the photon recoils backwards. Find the momentum of the electron
An AC adapter for a telephone-answering unit uses a transformer to decrease the line voltage of 120 V (rms) to a voltage of 10.5 V. The rms current delivered to the answering system is 400 mA. What is the rms power delivered to the transformer
At Zion National Park a loud shout produces the echo 3.40 s later from a colourful sandstone cliff. How far away is the cliff.
Two small no conducting spheres have a total positive charge of 108.4 uC. Determine the charge on the spheres
question1a dockworker applies a constant horizontal force of 76.0n to a block of ice on a smooth horizontal floor. the
A 62.0kg skier is moving at 6.50m/s on a frictionless, horizontal snow-covered plateau when she encounters a rough patch 3.50m long. How fast is the skier moving when she gets to the bottom of the hill
A -50 micro C charge is located at (+26 cm, 0) on the + x axis and a +50 micro C charge is located at (-26cm, 0) on the -x axis. Calculate the net electric field and the total electric potential
A mass of 355 gram hangs from one end of a string that goes over a pulley with a moment of inertia of .0125 kg*m^2 and a radius of 15 centimeter. Find the tension in the string on the side of the 355 gram mass
A cue ball (mass = 0.165 kg) is at rest on a frictionless pool table. The ball is hit dead center by a pool stick, which applies an impulse of +1.61 N·s to the ball. Find the velocity of the second ball just after it is struck
The sketch at the left shows a square loop of wire. Its resistance is 5 ohm. Its dimensions are shown: a = 4.0 cm, b = 5.0 cm. The nearby wire carries a current of 10.0 A. What is the magnitude of the magnetic flux in the loop of wire?
An electric-dipole antenna is located on the roof of a 209-m-high building and is oriented vertically. What intensity, in milliwatts per square meter, does she measure
An object of mass 3.3 kg is projected into the air at a 55° angle. It hits the ground 3.4 s later. What is its change in momentum while it is in the air
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