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Charged Belt A charged belt, 75 cm wide, travels at 25 m/sbetween a source of charge and a sphere. The belt carries chargeinto the sphere at a rate corresponding to 100 µA. Compute the surface charge density on the belt.
Picture a wave with crests every 1.8m apart. If a crestpasses you every 2.6s, what is the propagation speed of the wave?
Two point charges, Q 1 = -2.0 μ C and Q 2 = +2.0 μ C, are placed as shown. In Fig. 21.2b, the x-component of the electric field, at the origin O, is closest to:
A 150 MW laser pulse is focused with a lens to a diameter of 4.99 ?m. What is the laser beam's electric field amplitude at the focal point
A) Find v so that the rod swings up and is horizontal at the max height of the bob. B) Find the minimum v so that the rod will make a complete circle C) Find v so that the tension in the rod is zero at the top of its swing.
Develop an expression for the electric field anywhere inside thecylinder. To check your result, what is the magnitude of theelectric field at r = 5.90 cm, where R = 9.80 cmand ρ = 7.55 μC/m3?
a) calculate E1' and E2', the lorentz transformations of E1 and E2 b) calculate the distances E1E2 and E1'E2' with the four dimensional scalar product of the time position vector within itself
Charge is distributed with constant volume density D throughout the rectangular box with length a, width b and height c.
A hoist is powered by an electric motor that draws 4.82 kilowatts of electric power. How long will it take this hoist to lift a 2550 kg mass to the top of a 75.4 m high building
A 16.0L tank contains 0.430kg of helium at 16.0?C. The molar mass of helium is 4.00g/mol, How many moles of helium are in the tank
A metal rod (2.4 kg, 1.5 m long) is rotating about an axis through its center at 20.0 rad/s. Calculate its rotational kinetic energy
Vector A added to Vector B is equal to the magnitude of A added to the magnitude B, the vectors must be:
The number of electrons in a copper penny is approximately 10*10^23, How large would the force be on an object if it carried this charge and were repelled by an equal charge one meter away?
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