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A conducting coil of 2200 turns is connected to a galvanometer, and the total resistance of the circuit is 40 ?. The area of each turn is 3.75 × 10-4 m2. This coil is moved from a region where the magnetic field is zero into a region where it is nonzero, the normal to the coil being kept parallel to the magnetic field. The amount of charge that is induced to flow around the circuit is measured to be 7.0 × 10-3 C. Find the magnitude of the magnetic field.
A river flows due east at 1.43 m/s. A boat crosses the river from south shore to the north shore by maintaining a constant velocity of 10.5 m/s due north relative to the water.
The world's largest refracting telescope is operated at the Yerkes Observatory in Wisconsin. It has an objective of diameter of 1.02 m. What is the minimum separation of two objects on the ground
A 89.0kg skydiver can be modeled as a rectangular "box" with dimensions 24.0cm \times 44.0cm \times 175cm. What is his terminal speed if he falls feet first
A high-speed photograph of a club hitting a golf ball is shown in the figure below. find the average force exerted on the ball by the club
An athlete training for an event does 6.53 104 J of work during a workout and gives off 6.17 105 J of heat, Determine the magnitude of the change in internal energy of the athlete
q1. an electric field of 254000 nc points due west at the certain spot. what are the magnitude and direction of the
A circular conducting loop with a radius of 0.30 m and a small gap filled with a 10.0 ohm resistor is oriented in the xy-plane. what is the magnitude of the current that will be caused to flow in the conductor
Suppose that the steel gas tank in your car is completely filled when the temperature is 15.5 °C. How many gallons will spill out of the 20.3- gallon tank when the temperature rises to 33.8 °C?
An old oaken bucket of mass 6.75kg hangs in a well a the endof a rope. What is the total work done on the bucket
in a performance test each of two cars takes 9.3 s to accelerate from rest to 25 ms. car a has a mass of 1415 kg and
A turntable 1.50m in diameter rotates at 77.0rpm. Two speakers, each giving off sound of wavelength 30.7cm , are attached to the rim of the table at opposite ends of a diameter.
Passengers riding in the Great Six Flags Air Racer are spun around a tall steel tower (see the figure). Calculate the speed of the planes
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