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A single conducting loop of wire has an area of 6.7 10-4 m2 and a resistance of 110 . Perpendicular to the plane of the loop is a magnetic field of strength 0.18 T. At what rate (in T/s) must this field change if the induced current in the loop is to be 0.20 A
to combat wasteful habits we often speak of "conserving engery", by which we mean turning off lights, find the difference in energy conservation and conserving energy
A jet plane is flying with a constant speed along a straight line, at an angle of 30.0? above the horizontal. The plane has a weight W? of magnitude 86,500N, What is the magnitude of the thrust force
One of the contests at the school carnival is to throw a spear at an underwater target lying flat on the bottom of a pool. The water is 1.2 m deep. At what angle below horizontal should you throw the spear in order to hit the target
A satellite of mass 190 kg is placed into Earth orbit at a height of 400 km above the surface. how long does the satellite take to complete one orbit
An object at rest explodes into three peices of equal mass. One moves east at 20 m/s; What is the velocity of the third piece
A point source of light is 200 cm below the surface of a body of water. Find out the diameter of the circle at the surface through which light emerges from the water.
In a Young's double-slit experiment the wavelength of light used is 476nm (in vacuum), Determine the angle that locates the dark fringe for which m = 0
In the railroad freight yard, an empty freight car of massmrolls along a straight level track at1.0m/s, Suppose instead that the two cars are at rest after the collision. With what speed was the loaded boxcar moving before the collision if the empt..
A cosmic ray proton streaks through the lab with velocity 0.80c at an angle of 55° with the +x direction (in the xy plane of the lab). Compute the magnitude and direction of the proton's velocity
Three point charges are located in the x-y plane. q1 = +78.2 nC at (0.0, -4.6 cm), q2 = -36.4 nC at (+5.8 cm, 0.0) and q3 = +77.4 nC at (-6.2 cm, +8.4 cm). Determine the magnitude of the net electric field at the origin
question1calculate approximately the average power of a water wave when it hits chest of an adult standing in the water
The armature windings of a dc motor have a resistance of7.5? . The motor is connected to a 120-V line, What will be the current in the motor
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