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A 1.0-kg block is pushed up a rough 22o inclined plane with a force of 7.0 N acting parallel to the incline. The acceleration of the block is 1.4 m/s2 up the incline. Decide the magnitude of the force of friction acting on the block.
Compute the following for a proton that has been accelerated to a kinetic energy of 800 MeV. (Rest energy of a proton is 938.3 MeV. Rest mass of a proton is 1.67 x10-27kg.)
A point charge +2.40 is held stationary at the origin. A second point charge -4.30 moves from the point = 0.125 , = 0 , to the point = 0.240 , = 0.240.
A car accelerates from rest to a kinetic energy of 2.06 x 105 J in a distance of 638 m. How much force did the car's engine deliver to produce this acceleration.
Suppose that you wish to fabricate a uniform wire out of 0.950 g of copper. Assume the wire has a resistance R = 0.600 ?, and all of the copper is used. What will be the length of the wire
what is the electron configuration for ce? is this what you would expect due to the fact that the 4f subshell is more
a single slit 820 nm wide is illuminated with light of wavelength 555 nm. what is the angular width of the central
a refrigerator has a coefficient of performance of 3. the ice tray compartment is at -20 c and the room temperature is
A person wearing a seat belt can withstand an acceleration of -310m/s squared. How thick should barriers be to carefully stop a car that hits a barrier at 120km/h.
In Rutherford's famous scattering experiment, α particles (helium nuclei) were fired at 2.0 x 10^7 m/s over a large distance toward a gold nucleus with charge +79e
An 88 kg spacewalking astronaut pushes off a 640kg satellite, exerting a 640N force for the 0.60 s it takes him to straighten his arms.
Determine out the work completed to move the particle from x = 0 to x_3 = 10.5 m graphically by determining the area under the F_x vs. x graph.
A 15.0-kg block rests on a horizontal table and is attached to one end of a mass less, horizontal spring. By pulling horizontally on the other end of the spring, someone reasons the block to accelerate uniformly and reach a speed of 5.00 m/s in 0.390..
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