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A flat circular coil with 171 turns, a radius of 5.85E-2 m, and aresistance of 0.373 Ω is exposed to an external magnetic fieldthat is directed perpendicular to the plane of the coil. Themagnitude of the external magnetic field is changing at a rate ofΔB/Δt = 0.961 T/s, there by inducing a current in thecoil. Find the magnitude of the magnetic field at the center of thecoil that is produced by the induced current.
A car travels with an initial velocity of 2 meters per second, at initial position of 0 meters with an accerleration of 2 meters per second at time of 2.0 seconds
A horse is capable of moving at four different speeds: walk (1.9 m/s), trot (5.0 m/s), canter (7.0 m/s), and gallop (12 m/s). Ann is learning how to ride a horse. She spends 15 minutes riding at a walk and 1.8 minutes at each other speed.
Three athletes are tugging on a ring. Martha pulls with a force of 150N in the northernly direction. How big is the resultant of the three forces
What is the greatest possible rate of energy transfer by radiation from a metal cube 2.4cm on a side that is at 720 degrees Celsius
The froghopper, Philaenus spumarius, holds the world record for insect jumps. What horizontal distance did the froghopper cover for this world-record leap
A Foucault pendulum is designed to demonstrate the effect of the Earth's rotation. What is the maximum speed of the pendulum
An electron is released from rest at the negative plate of aparallel plate capacitor. The charge per unit area on each plate isσ = 1.84E-7 C/m2, and the plates are separated by adistance of 1.48E-2 m. How fast is the electron moving just beforeit ..
A mass sitting on a horizontal, frictionless surface is attached to one end of a spring; the other end is fixed to a wall. 3.4 J of work is required to compress the spring by 0.18 m. Find the value of the mass
Suppose a hockey puck slides down a frictionless ramp with an acceleration of 4.00 m/s2. If the ramp has a length of 5.90 m, how long does it take the puck to reach the bottom
On a ski weekend in Colorado, Bob, whose mass is 75.0kg, skis downa hill that is inclined at the angle of 15.0 degrees to the horizontal, How much work is done by gravity on Bob as he goes down the hill
A single square loop of wire 21.8 cm on a side is placed with its face parallel to the magnetic field between the pole pieces of a large magnet. When 6.27 A flows in the coil, the torque on it is 0.325 m·N. What is the magnetic field strength?
A railroad car of mass 2.54 104 kg, is moving with a speed of 3.91 m/s. It collides and couples with three other coupled railroad cars, What is the speed of the four cars after the collision
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