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The thin ring can be adjusted vertically between three equally long cables from which the 100-kg chandelier is suspended. If the ring remains in the horizontal plane and z = 600 mm, determine the tension in each cable.
The Specific heat of a substance varies with temperature according to the function c=0.20 + 0.14T + 0.023T2, Determine the energy required to raise the temperature of 2.0 gram of this substance from 5.0oC to 15oC
A car with a mass of 950 kg is moving to the right with a constant speed of 1.69 m/s, What is the total force on the car if it is moving to the left
A gas at temperature T0 and atmospheric pressure fills a cylinder. The gas is transferred to a new cylinder with two times the volume, Determine the new temperature of the gas
Suppose that the transmission axis of the first polarizer is rotated 18o relative to the axis of polarization of the incident light, and that the transmission axis of each additional analyzer is rotated 18o relative to the transmission axis of the p..
A 17-kg suitcase falls from a hot-air balloon that is floating at a height of 333 m above the surface of Earth. The suitcase has an initial speed of 0 m/s however it reaches a speed of 26 m/s just before it hits the ground. Compute the percentage of ..
If a rubber ball of mass 1.0 kg is dropped from a height of 2.0 m and rebounds on the first bounce to 0.75 of the height from which it was dropped, how much energy is dissipated through the collision with the floor?
When starting a foot race, a 70 kg sprinter exerts an average force of 650N backward on the ground for 0.800 s. What is the sprinters final speed?
A spring scale is fastened to the ceiling of a railway car. When a 1.0-kg block is hung from the scale, it reads 12 N and is oriented as shown in the figure. What is the approximate acceleration of the car as measured by an observer at rest on the ..
a pendulum of length l and mass m hangs from a bead of mass m that moves frictionlessly along the curve yx4 . use y the
A uniform disk of mass M=12.0 kg and radius R=.75 m is free to rotate about a frictionless axle through its center. compute the roational kinetic energy
Using a fast-pulsed laser and electronic timing circuitry, you find that light travels a distance of 2.55m within a plastic rod in a time interval of 10.9ns. What is the refractive index of the plastic
a small electric car overcomes a 250 n friction force when traveling 30 kmh. the electric motor is powered by
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