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A hollow metal sphere has a potential of +360 V with respect toground (defined to be at V = 0) and has a charge of 5.9 x10-9 C. Find the electric potential at the center of the sphere.
Assume the charge on black hole is 5740 C. At what distance from it is the electric potential equal to 1100 V.
A supertrain of proper length 200 m travels at a speed of 0.9 times the speed of light (relative to the tunnel) as it passes through a tunnel having proper length 80 m. how much longer is the train than the tunnel
A barefoot field-goal kicker imparts a speed of 26 m/s to a football at first at rest. If the football has a mass of 0.24 kg and the If the football has the mass of 0.24 kg and the time of contact with the ball is 0.037 s, what is the force exerte..
The magnetic field inside a superconducting solenoid is 4.30 T. The solenoid has an inner diameter of 6.20cm and a length of 26.0 cm. evaluate the magnetic energy density in the field
A viscometer consists of two concentric cylinders, 10.2 cm and 10.6 cm in diameter. A particular liquid fills the space between them to a depth of 12.0 cm. What is the viscosity of the liquid
A bug crawls outward from the center of a compact disc spinning at 160 revolutions per minute. The coefficient of static friction between bug's sticky feet and disc surface is 1.10.How far does the bug get from the center before slipping.
Suppose that you are traveling on board a spacecraft that is moving with respect to the earth at a speed of 0.954c. what is your breathing rate
a person stands at the base of a hill that is a straight incline making an angle phi with the horizontal. for a given
an 8.70 kg block slides with an initial speed of 1.66 m/s up aramp inclined at an angle of 27.4 degree with the horizontal. find the distane the block slides before coming to rest
question a 60.0-kg person rides in an elevator while standing on a scale. the scale reads 400 n. what is the
A 1200 kg two-stage rocket is traveling at aspeed of 6.90*10^3 m/s away from the Earth, What is the speed and direction of each section
The coefficient of performance of a refrigerator is 3.4. The compressor uses 20 J of energy per cycle. How much heat energy is exhausted per cycle
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