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A charged sphere of radius 10 centimeter has a total charge of 5 C.
a. Find the magnitude of the electric field at the surface of sphere?
b. Find the magnitude of the electric field inside the sphere?
c. Determine the potential at the surface of the sphere?
d. Find what is the potential at the center of the sphere?
a 8.2 kg mass hanging from a spring scale is slowly lowered onto a vertical spring.part a what does the spring scale
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As the drawing illustrates, a siren can be made by blowing a jet of air through 20 equally spaced holes in a rotating disk. What must be the angular speed in radians per second of the disk
A space probe is launched from Earth, headed for deep space. At a distance of 15,000 miles from the Earth's center, the gravitational force on it is 800 lb. What is the size of the force when it is at 30,000 miles from the Earth's center?
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A girl is using a rope to pull a box that weight 300 N across a level surface with constant velocity. what is the normal force of the floor on the box
Two light bulbs are designed for use at 120 V and are rated at 75 W and 150 W. Which light bulb has the greater filament resistance? Why?
a 30000-kg truck travelling at 10.0ms collides with a 1700-kg car travelling at 25ms in the opposite direction. if they
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