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At a certain instant, a 4 kilogram object is sliding eastward at a speed of 15 meter per second, propelled by an eastward force of 35 Newton. The coefficient of kinetic friction between the object and the horizontal surface it slides on is 0.20. No other horizontal forces act on the object. Assuming all forces remain constant, compute how far the object travels in the next 3 second.
A resistor with R = 1.5 k? is connected to an AC generator that operates at 60 Hz with an amplitude of 49 V. (a) Find the amplitude of the current through the resistor. A
The electric field just above the surface of the charged hollow drum of a photocopying machine has a magnitude E of3.0E+5 N/C. What is the surface charge density on thedrum if it is a conductor?
The drawing shows four insulated wires overlapping one another, forming a square with 0.050-m sides. All four wires are much longer than the sides of the square. The net magnetic field at the center of the square is 72 μT directed into the drawing..
Two 4.4 cm× 4.4 cm metal plates are separated by a 0.19-mm-thick piece of Teflon, What is the maximum potential difference between the disks
1 for an experiment a laser which emits light at a single wavelength a monochromatic source was used. how would the
A sledge loaded with bricks has a total mass of 17.5 kg and is pulled at constant speed by a rope inclined at 20.3° above the horizontal. How much work is done by the rope on the sledge
a hollow spherical shell with mass 1.55 kg rolls without slipping down a slope angled at 39.0.part a find the
He is sitting on a set of bathroom scales. He notes that scales show four times his normal weight. What is the radius of the loop, in meters.
A 1.32 kg book slides 1.15 m along a level surface. The coefficient of kinetic friction between book and surface is 0.136. Find the work done by friction
You are riding a train as it rounds a curve of radius 400 meter at a constant speed. Obtain what is the speed of the train
A 1200 kg automobile crashes into a brick wall, collapsing thefront end 1.5 meters. If the averge retarding force applied by the brick wall to the automobile is 2000 N through out the entire time of crash, what was the speed of the automobile just..
A 920 kilogram sports car collides into the rear end of a 2300 kilogram SUV stopped at a red light. Evaluate the speed of the sports car at impact
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