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A small metal sphere, carrying a net charge of q_1 = -3.00 mu C, is held in a stationary position by insulating supports. A second small metal sphere, with a net charge of q_2 = -7.80 mu C and mass 1.70 g, is projected toward q_{1}. When the two spheres are 0.800 rm m apart, q_{2} is moving toward q_{1} with speed 22.0 rm m/s . Assume that the two spheres can be treated as point charges. You can ignore the force of gravity.
If the bullet buries itself in the block, find out how far along the ground that the block lands from the base of the table.
q1. dennis driving his 600 kg car makes a 90 degree turn. his speed before the turn is 15.0 ms and after the turn are
A wind turbine converts some of the kinetic energy of the wind into electric energy. Suppose that the blades of a small wind turbine have length L = 3.7 m. What is the translational kinetic energy of this mass of air
A express train travels along a straight line between two stations, A and D. Stations B and C are spaced evenly along the line between A and D. The engineer leaves A and accelerates at a constant rate until he passes station B
A spring has force constant 8.3 Nm^-1. A 0.075kg mass is hung on the end of the spring.
A 5 kg block slides down an inclined ramp at approximately constant velocity. The ramp angle is 23 degrees counter clockwise from the horizontal. What is the value of the force on the block due to friction between the block and the ramp? Show work..
two unknown charges attract each other with a force of 4.0 n when they are 4.1 m apart. find the force in n between
A submarine is 308 m horizontally out from the shore and 141 m beneath the surface of the water. find the height of the building
twenty moles of a monatomic ideal gas r 53 undergo an adiabatic process. the initial pressure is 400 kpa and the
bernie b is walking directly toward the center of a vertical mirror m. how close to the mirror will he be when sarah s
a stone is dropped from the roof of a building; 1.20 seconds after that, a second stone is thrown straight down with an initial speed of 22m/s, What are the speeds of the two stones just before they hit the ground
The threshold of dark-adapted (scotopic) vision is 6.0 x 10-11W/m2 at a central wavelength of 500 nm. how many photons per second enter the eye
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