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A 120 Volt to 220 Volt step-up transformer consumes 10 Amp current in the primary coil, which has 600 turns. Determine the number of turns in the secondary coil? Determine the current in the secondary coil? Determine the power of the transformer?
question1a 55-kg gymnast hangs vertically from a pair of parallel rings.a if ropes supporting the rings are attached to
A 1480{\rm kg} car pulls a 320{\rm kg} trailer. The car exerts a horizontal force of 3900{\rm N} against the ground in order to accelerate. What force does the car exert on the trailer
Unpolarized passes through two polarizers that are oriented 65 degrees to each other. What is the orientation of the polarizers
A parallel-plate capacitor is charged to a potential difference of 12 V. The area on each plate is 20 cm2 andthe spacing between plates is 0.15 mm. Find thef ollowing: the electric field between the two plates. the total charge on each plate.
A 7.80 gram bullet moving at 460 m/s penetrates a tree trunk to a depth of 4.4 centimeter. Use work and energy considerations to compute the average frictional force that stops the bullet
Three charges, +q, +2q, and +4q, are linked by strings (Assume that the middle charge is fixed in space and the other 2 charges are held there by the tension alone.)
What is the final charge of each conductor. Two identical spherical conductors X and Y are mounted on insulated stands. X carries the charge of +8.0nC and Y carries a charge of -2.0nC.
A near-sighted person might correct his vision by wearing diverging lenses with focal length f = -60cm. use ray tracing to determine the height of the image
A dedicated sports car enthusiast polishes the inside and outsidesurfaces of a hubcap that is a section of a sphere. When he looksinto one side of the hubcap, he sees an image of hisface 26.0 cm in back of thehubcap.
After a tornado, a 0.60g straw was found embedded 3cm into the trunk of a tree. If the average force exerted on the straw by the tree was 90N, what was the speed of the straw when it hit the tree.
the speed of sound does not depend on the loudness or the frequency of sound. the speed of sound in dry air 0 degree
A 1.53 kg ball is attached to a ceiling by a 3.06 m longstring. The height of the room is 5.12 m. The acceleration of gravity is 9.8 m/s2. What is the gravitational potential energy associated with theball relative to the ceiling? What is the gravit..
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