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A charge of -4.00 nC and a charge of -5.35 nC are separated by a distance of 40.0 cm. Find the position at which a third charge of +7.80 nC can be placed so that the net electrostatic force on it is zero.
_________ cm from the -4.00 nC charge
_________ cm from the -5.35 nC charge
Two spheres, one with mass M, radius R, and the other mass 2M,radius 3R, are released from rest at a distance of 12R between their centers. What is the velocity of each sphere when they collide?
A 200 N object is supported by two ropes. Rope 1 makes an angle of 35 degrees with the horizontal, What is the amount of tension in each rope
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Galaxy A is measured to be receding from us with a speed of 0.75c. Galaxy B, located in precisely the opposite direction, is found to be receding from us at a speed of 0.85c. a) What recessional speed would an observer on Galaxy A find for our galaxy..
The width of the ribbon normal to a radius vector originationg at the star's center is much greater than the thickness of the ribbon in the radial direction.
The bullet becomes lodged in the block, and the two slide together on the floor for a distance of 1.3 m before coming to rest. If the coefficient of friction between the block and the floor is 0.40, Elucidate what is the mass of the block?
A 20.0 g bullet strikes a0.592 kg block attached to a fixedhorizontal spring whose spring constant is 6.69 103 N/m, What was the speed of the bullet before impact
question1assume a 67-kg boy and a 44-kg girl use a massless rope in a tug-of-war on an icy resistance-free surface. if
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