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A flat circular coil with 125 turns, a radius of 3.42 x10-2 m, and a resistance of 0.448 Ω is exposed toan external magnetic field that is directed perpendicular to the plane of the coil. The magnitude of the external magnetic field is changing at a rate of ΔB/Δt = 0.552T/s, there by inducing a current in the coil. Find the magnitude ofthe magnetic field at the center of the coil that is produced by the induced current.
A 64-kg skier is going down a slope oriented 36° above the horizontal. Determine the pressure that each ski exerts on the snow
In a certain particle accelerator, a current of .5mA is caried by a 5-MeV proton beam that has a radius of 1.5 mm. Find the power consumption of the accelerator
A light spring with spring constant 1200 N/m hangs from an elevated support. From its lower end hangs a second light spring, which has spring constant 1650 N/m. An object of mass 1.50 kg is hung at rest from the lower end of the second spring.
A large block of copper initially at 20.0oC is placed in vat of hot water (80.0oC). For the first 1.0 J of heat that flows from the water into the block, find the entropy change of the block
A pile driver is a device used to drive stakes into the ground.While building a fence, How far is the stake driven to into the ground on the first stroke
A 55g ball of clay traveling at speed v 0 hits and sticks to a 1.3kg kg block sitting at rest on a frictionless surface, What percentage of the ball's initial energy is "lost"
A train is traveling with a speed of 16.0 m/s relative to Earth. What is the velocity of the baseball relative to Earth
A dolphin leaps out of the water at the angle of 46° above the horizontal. The horizontal component of the dolphin's velocity is 9.40 m/s. Find out the magnitude of the vertical component of velocity.
On a workday the average decibel level of a busy street is 65 kb, with 121 cars passing a given point every minute. If the number of cars is reduced to 33 cars every minute on a weekend, what is the decibel level of the street.
A sled at rest on a flat, nearly frictionless surface is suddenly pushed with a force of 40.2N. what is the sled's final momentum
A projectile is fired at an angle such that the vertical component of its velocity and the horizontal component of its velocity are both equal to 19 m/s. How long does it take for the ball to reach its high point
Consider a spring of stiffness k and mass m. If we stretch - simultaneously - both ends of the spring by force F1 and F2. What will be the elongation of the spring
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