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Two unequal masses m1 = 10 kg and m2= 30 kg initially at rest are connected by an ideal string that passes over a pulley whose mass and friction are negligible as shown in the figure below. Determine:
a) The acceleration of the masses.
b) The tension on the connecting string.
c) The speed of m2 after it has descended 2.0 m.
when you lift an inverted glass from a basin of water the glass remains filled with water with the water in the glass
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An astronaut is being tested in a centrifuge. The centrifuge has a radius of 9.6 m and, in starting, rotates according to ? = 0.34t^2, find the magnitudes of the astronaut's angular velocity
0.45 kg of a metal at 90degreesC is added to 0.40 kg of whater at 20.0degreesC. If the final temp of the mixture is 26.0degreesC, what is the specific heat of the metal
A particle has a rest mass of 6.64E-27 kg and a momentum of 2.10E-12 kg-m/s. What is the ratio of kinetic energy to rest energy
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The puck in the figure below has a mass of 0.280 kg. Its original distance from the center of rotation is 40.0 cm, and it moves with a speed of 75.0 cm/s. Determine the work done on the puck
A car of mass 2800 kg collides with a truck of mass 4500 kg, and just after the collision the car and truck slide along, compute the velocity of the stuck-together car and truck
the 2.0 cm diameter coil has 25 turns and has a current flowing through it of 5 A. The magnetic field strength is .4 T. What is the emf due to the change in flux
question how large an emf rms will be generated in an antenna that consists of a 426 loop circular coil of wire 1.54 cm
A wedge of mass M and angle α slides freely on a horizontal plane. A particle of mass m moves freely on the wedge. Determine the motion of the particle as well as that of the wedge.
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