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A hollow, conducting sphere with an outer radius of 0.250 m and inner radius of 0.200 m has a uniform surface charge density of +6.50µC/m2. A charge of -5.00 µC is now introduced into the cavity inside the sphere.
-What is the new charge density on the outside of the sphere?
-Calculate the strength of the electric field outside the sphere.
-What is the electric flux through a spherical surface just outside the inner surface of the sphere?
A man stands at the midpoint among two speakers that are broadcasting an amplified static hiss uniformly in all directions. The speakers are 28.2 m apart and the total power of the sound coming from each speaker is 0.470 W. Discover the total sound i..
A flashlight bulb with a resistance of 40 ohm is powered with a 6 volt battery and produces 0.75W of power. what is the voltage across the battery terminals when the light bulb is on
a man stands on the roof of a building of height 16.1m and throws a rock with a velocity of magnitude 26.8 m/s, Calculate the maximum height above the roof reached by the rock
A deuteron (a neutron and a proton) has a mass of 3.34 x 1027 kg and a charge of +e. Find the time required for it to make one half of a revolution
My car has rear defrosters that are made of 13 wires embedded into the rear window. They can melt a thin layer of ice, What is the cross-sectional area of each wire
A starship moving toward Earth with a speed of 0.79 c launches a shuttle craft in the forward direction. What is the speed of the shuttle relative to the starship
A HeNe (Helium-Neon) laser has a beam power of 5.00 mW at a wavelength of 656 nm. Assume the beam is focused by a lens to a circular spot whose effective diameter is 15 wavelengths of the light.
A 1.85 g ping-pong ball rubbed against a wool jacket acquires a net positive charge of 1.85 µC. How many electrons were removed from the ping pong ball
question a sled slides along a horizontal surface on which the coefficient of kinetic friction is 0.28. its velocity at
What potential difference is needed to accelerate a proton from rest to a speed of 8.5x106 m/s
In a vertical laundry dryer, there is an angle at which the spinning clothes first lose contact with the wall. What is the minimum angle
a 120 turn coil of radius 1.8 cm and resistance 5.3 ? is placed outside a solenoid of radius 1.6 cm. Find the magnitude and direction of the current induced in the coil
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