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An electric generator contains a coil of 120 turns of wire, each forming a rectangular loop 60.0 cm by 36.7 cm. The coil is placed entirely in a uniform magnetic field by magnitude B= 4.78 T and initially perpendicular to the coil's plane. What is in volts the maximum value of the emf produced when the loop is spun at 1280 rev/min about an axis perpendicular to the magnetic field?
A bob of mass m = 0.250 kilogram is suspended from a fixed point with a mass less string of length L = 22.0 centimeter. What tangential speed v must the bob have therefore that it moves in a horizontal circle with the string making an angle 21.0 deg..
A parallel-plate capacitor is made from two aluminum-foilsheets, each 4.0 cm wide and 5.00 mlong. What is the capacitance of this capacitor
A diver springs upward from a boardthat is three meters above the water. Determine her initial velocity, both magnitude and direction
Completly lost , a projectile is fired vertically upwards .air drag dissapates 68 kj during it's ascent . how much higherwould it have gone if air drag were negligible
two buses started from the same depot at the same time and traveled in opposite directions. after traveling 4 hours
A 9.60 kg object oscillates at the end of a vertical spring that has a spring constant of 1.65*10^4 N/m. By what percentage does the amplitude of the oscillation decrease
As in the previous problem (43), a solid block is suspended from a spring scale. If the reading on the scale when the block is completely immersed in water is 25.0 N, what are the block's volume and density
1. sunlight strikes a piece of crown glass at an angle of incidence of 37.4o. calculate the difference in the angle of
a block is pushed across a rough horizontal surface by a horizontal force of magnitude P= 25 . The coefficient of kinetic friction between the block and the ground is 0.3 if the blck started from rest
A paperweight is made of a solid glass hemisphere with index of refraction 1.50. What length of line is seen by someone looking vertically down on the hemisphere
a 7.0-kg block is at rest on a horizontal floor. if you push horizontally on the 7.0-kg block with a force of 21.0 n it
Two parallet wires separated by 7.0 cm repel each other with a force per unit length of 1.5 x 10^-4 N/m. The current in one wire is 3.0 A
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