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The transformer supplying power to an artist's light sculpture provides 9600-V AC when supplied by 120-V AC. If there are 100 turns in the transformer's primary coil, how many turns are there in its secondary coil?
A 0.2kg flying pig toy is attached to the ceiling with a string. When the pig's wings flap, find the angle the string makes with the vertical
A velodrome track is banked so that a bicycle traveling at 69.9 km/h will have no tendency to slip to either side when traveling on the path that has a radius of curvature of 54.0 m
A woman stands on a scale in a moving elevator. Her mass is 69.0 kg, and the combined mass of the elevator, What does the scale read (in N) during the acceleration
An antiaircraft shell is fired vertically upward with an initial velocity of 200m/s. compute the maximum height of the shell
a 1000 N crate is being pushed across a level floor at a constant speed Vi=1.75 m/sec by a force of F=300N at an angle of theta=20 Degrees below horizontal. what is the final velocity of the crate
imagine that we have a string 1.5 meters long that is fixed at both ends. what is the frequency of the normal mode of the strings oscillation that has 3 antinodes
A 1.70mcylindrical rod of diameter 0.550cmis connected to a power supply that maintains a constant potential difference of 13.0Vacross its ends, while an ammeter measures the current through it. You observe that at room temperature (20.0C) the amm..
A 3.0m length of straight wire carries a current of 18A in a uniform magnetic field of 70mT whose direction is at an angle of 36o from the direction of the current.
A 5.0-kg object is pulled along a horizontal surface at by a 15 N force acting 20? above the horizontal. How much work is done by the gravitational force
A bar magnet is held above the center of the coil with its north pole pointing down. What is the direction of the induced current in the coil
A certain atom has atomic number Z = 21 and atomic mass number A = 44. How many protons and neutrons are in the nucleus
Two ultrasonic sound waves combine and form a beat frequency that is in the range of human hearing for a healthy young person, What is the largest possible value for the frequency of the other ultrasonic wave
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