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A square, single-turn coil 0.25 m on aside is placed with its plane perpendicular to a constant magneticfield. An emf of 18 mV is induced inthe winding when the area of the coil decreases at a rate of0.08 m2/s. What is the magnitude of the magnetic field?
A 120g ball moving at 0.50 m/s in the + x direction is subject to a 0.25 N force in the - y direction for 2.5 s, Find the balls final speed
A constant net force of 75N acts on an object initially at rest as it moves through a parallel distance of 0.60m. What is the final kinetic energy of the object
A child is riding a merry-go-round, which has an instantaneous angular speed of 1.25 rad/s and an angular acceleration of 0.745 rad/s2. What angle does the acceleration of the child make with the tangential direction
A small circular loop of wire of radius 5.0 cm and resistance R = 1.7 10-3 Ω is centered inside a large circular loop of wire of radius 50 cm, Find the average current in the smaller loop during this time interval
A middle-aged man starts to wear eyeglasses with lenses of +2.0 D that allow him to read a book held as close as 25 cm. Several years later, What is the power of the new lenses
A disk is turning with uniform circular motion. A point on the rim of the disk is moving with velocity v1 = (1.5 m/s)i + (2.0 m/s)j at t1 = 3.00 ms, find the magnitude of the point's centripetal acceleration
A block with mass m = 19.0 kg slides down an inclined plane of slope angle 17.8 ° with a constant velocity. It is afterwards projected up the same plane with an initial speed 1.35 m/s. How far up the incline would the block move before coming to rest..
When mass M is at the position shown, it is sliding down theinclined part of a slide at a speed of 1.89 m/s. find the coefficient of kinetic friction for the mass on the surface
A model rocket is launched straight upward with an initial speed of 47.8m/s. It accelerates with a constant upward acceleration of 2.07m/s2 until its engines stop at an altitude of 157 m. What is the maximum height reached by rocket.
X-rays are scattered from a target at an angle of 15.2° with the direction of the incident beam. Find the wavelength shift of the scattered x-rays
Arranged on the floor are five concrete blocks, each 28.4kg and 0.265m tall. What is the minimum work required to stack all five vertically
An object moves uniformly around a circular path of radius 23.0 cm, making one complete revolution every 2.05 s. What is the angular speed of the object
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