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An electric point of 6 mill- coulomb is placed in the center of a metallic spherical shell of inner diameter 15 cm and thickness 18 cm. Calculate the electric field at the following distances from the point charge. 10cm, 16cm, 25 cm.
a. The charge is now taken out from the spherical shell and placed outside it at a distance 25cm from the center of the sphere. Calculate the electric field at the center of the spherical shell.
A revolving door consists of four rectangular glass slabs,with the long end of each attached to a pole that acts as the rotation axis. Find the rotational inertia of the entire door
Suppose a ball player throws a ball at an angle of 55 degrees and a speed of 25 m/s. Next to the ball thrower, What is the distance the ball is thrown
On a part-time job, you are asked to bring a cylindrical iron rod of density 7800kg/m3, Calculate the weight of the rod, w
an inductor carries a current of 2.5 A, and the magnetic energy stored in the inductor is .0035 J. What is the inductance
A hoist motor supplied by a 240 V source requires 12 A to lift an 800 kg load at a rate of 9.00 m/min. Determine the power input to the motor
A Bullet of mass 14g strikes a block of mass 1.2kg, which is at rest on a horizontal frictionless surface and is attached to a coil spring shown. Find the velocity of the block just after impact
Red light from three separate sources passes through a diffraction grating with 6.00×10^5 Lines/m. Calculate the angles for the first-order diffraction lines
One way to measure on another planet or moon by remote sensing is to measure how long it takes an object to fall a given distance. A lander vehicle on a distant planet records the fact that it takes 3.17 for a ball to fall freely 11.26.
define why a dielectric increases the maximum operating voltage of a capacitator even though the physical size of the capacitator doesn't change.
A car is initially 4.0km south of a gas station and is moving with a constant speed of 55km/h due north. How far are the vehicles from the gas station when they pass each other
An 88 kg spacewalking astronaut pushes off a 640kg satellite, exerting a 640N force for the 0.60 s it takes him to straighten his arms.
A uniform line of charge that is 5.00cm long has a total charge of 6.00uC. An electron is at distance of 5.00cm from one end of the charge distribution, What is the electric field at the electron
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