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Three blocks of mass m1=1.0 kg, m2=2.0 kg, and unknown mass m3 are on a frictionless forizontal surface as shown on the figure below. The blocks are connected by ideal massless strings. A force FL=15 N is applied to the left block and is directed to the left. A force FR=33 N is applied to the right block, and is directed to the right. The tension T12 in the string between m1 and m2 is not known and the tension T23 in the string between m2 and m3 is 24 N.
(a) What is the acceleration of the system?
(b) What is the tension T12 in the string between m1 and m2?
(d) What is the unknown mass m3?
When two point charges are a distance R apart, their potential energy is -2.00 .How far (in terms of R) should they be from each other so that their potential energy is -6.00.
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ou place it in water and it displaces a volume of 20 cubic centimeters of water. What is the hardness of this mineral? describe your answer.
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A uniform plank of length 5.0 m and weight 225 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support. To what distance x can a person who weighs 415 N walk on the overhanging part of the plank before it just ..
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An unmarked police car, travelling a constant 94 km/h, is passed by the speeder travelling 153 km/h. precisely 0.70 s after the speeder passes, policeman steps on the accelerator. If the police car's acceleration is 2.30 m/s^2, how much time elapses ..
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