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An infinite line charge of uniform linear charge density = -1.1 C/m lies parallel to the y axis at x = -1 m. A point charge of 2.1 C is located at x = 2.0 m, y = 3.0 m. Find the x- and y-components of the electric field at x = 3.0 m, y = 2.5 m.
A rocket, which is in deep space and initially at rest relative to an inertial reference frame, has a mass of 53.1 x 10^5 kg, of which 3.81 x 10^5 kg is fuel. What is the rocket's thrust
You're carrying a 4 m long, 23 poles to a construction site when you decide to stop for a rest. You place one end of the pole on a fence post and hold other end of the pole 35 from its tip. How much force should you exert to keep the pole motionle..
You wish to buy a motor that will be used to lift a30-kg bundle of shingles from the ground to the roof of a house. Determine the minimum torque that the motor must be able to provide
The walls of a blackbody cavity are at a temperature of 27 degrees C. find the frequency of the radiation of maximum intensity
How fast should the platform move, v_p, for the person to detect a beat frequency of 7.00 Hz ? Take the speed of sound to be 344 m/s. Express your answer numerically in meters per second.
What voltage must be applied to the 5.00 µF capacitor of a heart defibrillator to store 550 J in it? Find the amount of stored charge
A proton and an electron are held apart a distance of one meter, Calculate the electric force F between them and Show the electric force vector on each of them
A person weighing 700N on a wire. find the tension force in the two segments of the wire. left wire 20 degrees and right wire 40 degrees.
A passenger in the car, who has a mass of 45 kg, moves forward a distance of 55 cm while being brought to rest by inflated air bag. what is the magnitude of force acting on the passenger
A 12.0-{\rm kg} shell is launched at an angle of 55.0 ^\circ above the horizontal with an initial speed of 150 {\rm{ m/s}}. When it is at its highest point, the shell exploded into two fragments, one three times heavier than the other.
The small mass m sliding without friction along a looped track is to remain on the track at all times, Calculate the magnitude of the normal force exerted by the track at the top of the loop
Illustrate what was the angular acceleration of the grinding wheel as it slowed down? Through what total angle did the wheel turn between t = 0 and the time it stopped?
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