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Q. An emf is induced in a conducting loop of wire 1.25 m long as its shape is changed from square to circular. Find the average magnitude of the induced emf if the change in shape occurs in 4.14 s, and the local 0.120 T magnetic field is perpendicular to the plane of the loop.
Q. A 66 kg boy and a 43 kg girl use an elastic rope while engaged in a tug-of-war on an icy, frictionless surface. If the acceleration of the girl toward the boy is 3.0 m/s2, find the magnitude of the acceleration of the boy toward the girl.
A 55 kg person is riding in a hot air balloon and scale shows this person's weight too be 549N. the acceleration of gravity at the location of the balloon is known to be 9.79 m/s/s.
If the mass of both weights is 175gm, the first mass is located 20 north of east, the second mass is located 20 south of east, and the transducer sensitivity is 0.5volts/Newton, how large a voltage do you expect to measure? Imagine the transducer ..
A 66 {rm kg} skier speeds down a trail, as shown in the figure . The surface is smooth and inclined at the angle of 22 ^circ with the horizontal. Find the magnitude of the net force acting on the skier.
A transverse electromagnetic plane wave with a frequency of 2.84 MHz travels directly away from you (- z direction). At time t = 0, your magnetic field detector measures a magnetic field of 4.57 × 10-8 Tesla pointing down (- y direction) that further..
An asteroid is discovered heading straight toward Earth at 14 km/s . An international team manages to attach a giant rocket engine to the asteroid. The rocket fires for 10minutes , after which the asteroid is moving at 28degrees to its original pa..
The distance between two telephone poles is 55.55 m. When a 1.00 kg bird lands on the telephone wire midway between the poles, the wire sags 0.165 m. illustrate a free-body diagram of the bird.
Small steel ball bearing with a mass of 17 g is on a short compressed spring. When aimed vertically and suddenly released, the spring sends the bearing to a height of 1.39m. Calculate the horizontal distance ball would travel if the same spring we..
A box is sliding up an incline that makes an angle of 27.7 ° regarding the horizontal. The coefficient of kinetic friction between the box and the surface of the incline is 0.113. The initial speed of the box at the bottom of the incline is 2.27 m/s...
What is corresponding free energy change
define the speed with which the cart reaches positions 3, 2, and 1 (in that order). Neglect friction. Let g = 9.81 m/s2.
A spring of constant 3.00 x 10^4 N/m is between a rigid beam and the output piston of a hydraulic lever. An empty container with negligible mass sits on the input piston. The input piston has Areai and output piston has area 18 A.
What is its velocity at impact? What will its average velocity be? What will its average speed be.
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