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A block of mass 9.0 kg is placed on a horizontal table and is connected to a second hanging block with mass M by a cord passing over a frictionless pulley. The coefficient of kinetic friction between the block and the table is 0.3, and the coefficient of static friction is 0.5.
Determine:
a) the maximum mass M for which system will stay at rest
b) the mass of M for which the block slides on the table at constant speed
c) the tension in the cord when the system accelerates at 2 m/s^2
A generator supplies 140 V to a transformer's primary coil, which has 70 turns. If the secondary coil has 610 turns, what is the secondary voltage
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Two point charges, q1 = 2.0 pC and q2 = -2.0 pC, are separated by 3.6 µm. What is the magnitude of the dipole moment
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A meterstick is at rest in an inertial frame S2. If S2 moves with a speed of 0.7c with respect to a rest frame S1, find the length of the meterstick as measured in frame S1 according to classical physics. Reply in units of m.
A marble slide towards a 2nd marble at rest along the surface of frictionless table-top. What is the velocity of the 2 bodies after collision
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