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Two objects, A and B, are rubbed together. As a result, object A acquires an excess negative charge while object B becomes positively charged. In comparison to their masses before the charging process, you can say that
1) The mass of A increased and that of B increased.
2) The mass of both objects increased.
3) The mass of both objects decreased.
4) The mass of A decreased and that of B decreased.
An unstable particle with a mass equal to 3.34 ? 10-27 kg is initially at rest. Find the masses of the fragments
A block is pushed up a frictionless 30° incline by an applied force as shown. If F = 25 N and M = 3.0 kg, what is the magnitude of the resulting acceleration of the block
A concave shaving mirror has a radius of curvature of +39.9 cm. It is positioned so that the (upright) image of a man's face is 1.54 times the size of the face. How far is the mirror from the face
An object initially at rest explodes in two fragments of masses 3.5 kg and 6.3 kg that move in diametrically opposite directions. find the internal energy of the explosion
A ski tow operates on a 15.0o slope of length 300 meter. The rope moves at 12.0 km/h and provides power for 50 riders at onetime, Find the power required in hp to operate the tow
a block is at rest on an inclined plane whose elevation can be varied. the coefficient of static friction is ms 0.42
particles 1 and 2 are fixed in place on an x axis at a separation of l 8.00cm. their charges are q1 e and q2 -
Starting with 2.10 mol of N2 gas (assumed to be ideal) in a cylinder at 1.00 atm and 21.0 °C, a chemist first heats the gas at constant volume, Calculate the amount of work done by the gas
Astronauts discover a planet orbiting another star. The mass of the star is 8.10 x 10^30 kg, what is the force exerted by the star on the planet
A car is parked on a cliff overlooking the ocean on an incline that makes an angle of 25.0° below the horizontal. Find the car's position relative to the base of the cliff when the car lands in the ocean
How much heat is released when a mixture containing 23.0 g CS2 and 23.0 g Cl2 reacts by the following equation CS2(g) + 3Cl2(g) ---> S2Cl2(g) + CCl4(g) delta H= -230 kJ
You buy a plastic dart gun, and being a clever physics student you decide to do a quick calculation to find its maximum horizontal range. What is the maximum horizontal range of your gun
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