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A parallel-plate capacitor is formed from two 2.20 cm multiplied by 2.20 cm electrodes spaced 2.0 mm apart. The electric field strength inside the capacitor is 1.8 multiply.gif 106 N/C. What is the charge (in nC) on each electrode?
An airplane wing is designed so that the speed of the air across the top of the wing is 299 m/s, What is the lifting force on a wing of area 21.0 m2
A copper wire has diameter 0.140mm and length 11.0cm . It's in a horizontal plane and carries a current of 2.50A, Find the magnitude of the magnetic field needed to suspend the wire against gravity.
A skier with a mass of 59 kg starts from rest and skis down an icy (frictionless) slope that has a length of 44 m at an angle of 32° with respect to the horizontal.
An infinitely long line of charge has a linear charge density of 8.00×10-12 C/m. A proton is at distance 16-cm from the line and is moving directly toward the line with speed 1200 m/s.
A basketball is launched with an initial speed of 10.0 m/s and follows the trajectory shown. From what distance x the ball is shot
A bullet with a mass of 4.25g , traveling horizontally with a speed of 434m/s , is fired into a wooden block with mass of 0.786kg, What is the decrease in kinetic energy of the bullet
A thin copper rod 1 m long has a mass of 50 g. What is the minimum current in the rod that would allow it to levitate above the ground in a magnetic field of magnitude 0.100 T.
A slingshot will shoot a 10-g pebble 22.0 mstraight up. How much potential energy is stored in the slingshot's rubber band
what is the rate of heat transfer from the plate to the air? If the free stream velocity if the air is doubled and the pressure are increased to 10 atm, what is the rate of heat transfer.
Determine the direction of the net electrostatic force on charge q3 (angle with respect to the positive x-axis).
Two wires are parallel and one is directly above the other. Each has a length of 50.0 m and a mass per unit length of 0.020 kg/m. However, the tension in the wire A is 6.20 102 N, and the tension in the wire B is 2.90 102 N.
Cowboy joe wishes to shoot his assaiat by ricocheting a bullet off a mirrored metal plate. To do so, must he simply aim at the mirrored image of his assaiant? Explain.
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