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Consider a horizontal square plate capacitor of area 1*1m2, capacitance in vacuum 4 μF, which contains a dielectric material by dielectric constant K=3. The dielectric slides frictionless and is attached via a mass less string and a mass less pulley to a block of mass 1.5 kg. The block pulls the dielectric from the capacitor as it falls. Calculate the speed of the block at the instant the dielectric leaves the capacitor assuming it starts at rest and that the voltage across the capacitor after the dielectric is removed is gauged to be 200 V.
A charge of q= +7.5uC is located in an electricfireld. The x & y components of the electric field are Ex=6.00 X 10^3 N/C and Ey = 8.00 X 10^3 N/Crespecitvely. What is the magnitude of the force on thecharge?
A pair of narrow slits, separated by 1.8 mm, is illuminated by a monochromatic light source. obtain the wavelength of the monochromatic light
A uniform meter stick is in static rotational equilibrium when a mass of 220 g is suspended from the 5.0-cm mark, What is the mass of the meter stick
A spring with a constant of 32N/m is placed on a horizontal smooth surface and a mass of 2.3 kg is pushed against it. What is the velocity of the mass as it leaves contact witht he spring
As an object is heated to a very high temperature and becomes self-luminous, What causes the color shift
One particle has a mass of 4.41 x 10-3 kg and a charge of +6.92 ?C. A second particle has a mass of 6.52 x 10-3 kg and the same charge. The two particles are initially held in place and then released.
A 1000 kg cannon is pointed at 30 degrees to the horizontal. Its muzzle speed is 300 m/s. It fires a ball, mass 5 kg. At what angle and speed will the ball fly out
Identify the magnitude and direction of the electric field at a point midway between a -8.0 uC and a +5.8 uC charge 8.0 cm away. Assume no other charges are nearby.
An green hoop with mass mh = 2.7 kg and radius Rh = 0.17 m hangs from a string that goes over a blue solid disk pulley with mass md = 2.3 kg and radius Rd = 0.09 m. What is magnitude of the linear acceleration of the hoop
a skier slides horizontally along the snow for a distance of 23 m before coming to rest. the coefficient of kinetic
A physics student playing with an air hockey table (frictionless surface) , What is the angle of inclination
During launch from a diving board, a diver's angular velocity abouther center of mass cahnges from 0 to 5.40 rad/s in 180m/s. determine the total number of degrees she rotates
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