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A square conducting loop is in a region of uniform, constant magnetic field. Can the loop be rotated about an axis along one side and no emf be induced in the loop? Discuss, in terms of the orientation of the rotation axis relative to the magnetic-field direction.
two 0.50g spheres are charged equally and placed 1.7cm apart. when released they begin to accelerate at 130ms2 . what
A 75- kg child sits in a swing suspended with 3.2- m-long ropes. Use conservation of energy to determine the speed the child will have at the bottom of the arc when she is let go
A bucket filled with dirt of mass 22 kg is suspended by a rope that hangs over a pulley of mass 31kg and radius 0.15 m. everything is at first at rest.
Some species use echolocation to determine the position and velocity of objects and prey. What is the sound frequency of the echo the bat hears
A spherical bowling ball with mass m = 3.3 kg and radius R = 0.11 m is thrown down the lane with an initial speed of v = 8.9 m/s. What is the magnitude of the final velocity
Four moles of ideal gas at 0C and atmospheric pressure undergoes isothermal expansion where its volume is doubled. Compute work the gas does. Calculate entropy change in the gas. Is heat added to or taken away from the gas? How much?
Then you swing another yo-yo with twice the mass of the first one, but you don't change the length of the string or the period. How do the tensions in the strings differ?
you are bowling and have one pin left standing. you roll the 10kg bowling ball at a velocity of 1 m s into the 1kg pin
A spherical shell is formed by taking a solid sphere of radius 25.0cm and hollowing out a spherical section from the shell's interior. What is the ratio of the outer area to the inner area of the shell
A grating has 380 rulings/mm and is 6.2 mm wide. How many higher orders of maxima can be seen
The 1900-turn coil in a dc motor has an area per turn of 1.1 10-2 m2. The design for the motor specifies that the magnitude of the maximum torque is 5.8 N · m, What is the current in the coil
As the drawing shows, the bullet puts a hole in a window of another building and hits the wall that faces the window. h is 0.54 m and d is 8.0 m. Assume that the bullet does not slow down as it passes through the window. Evaluate the Distance H
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