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A ball of mass 0.500 kg is attached to the end of a cord 1.50 m long. The ball is whirled in a horizontal circle as shown in the figure.
(a) What is the tension in the cord if the ball is whirled with speed of 10 m/s^2?
(b) If the cord can withstand a maximum tension of 50.0 N, what is the maximum speed at which the ball can be whirled before the cord breaks?
(c) What is the Periodic time if the ball is whirled with maximum speed?
a proton accelerates from rest in a uniform electric field of 638 nc. at some later time its speed is 1.28 x 106a find
rotates to provide an "artificial gravity" of 3.10 m/s2 for persons who walk around on the inner wall of the outer rim. Find out the rate of the wheel's rotation in revolutions per minute that will produce this effect.
A 92 kg man standing on a surface of negligible friction shoves a 73 g stone lying at his feet, giving it a velocity of 4.0 m/s. What velocity does the man acquire as a result.
Three forces are applied to a wheel of radius 0.290 m, as shown in the figure below. One force (F1 = 12.0 N) is perpendicular to the rim, one (F2 = 9.05 N) is tangent to it, and the other one (F3 = 13.3 N) makes a 40.0° angle with the radius. What..
To get the top spinning, its string is pulled with a tension of 0.30. Explain how long does it take for the top to complete the first five revolutions? The string is long enough that it is wrapped around the top more than five turns.
A car (m = 1,300 kg) is traveling at an initial speed of 12 m/s. It then slows to a stop over a distance of 78 m due to a force from the brakes. How much work is done on the car
A spring of negligible mass stretches 3.00 cm from its relaxed length when a force of 7.50 N is applied. What is the maximum velocity of the wave
A pot of hot water is boiling on your stove. The pot is in the shape of a round cylinder made of aluminum which is 10 cm in radius. What is the change in entropy of the boiling water
One leg of a Michelson interferometer contains an evacuated cylinder of length L, having glass plates on each end, what is the index of refraction of the gas
At one point in a pipeline, the water's speed is 2.95 and the gauge pressure is 3.80×104. Find the gauge pressure at a second point in the line 10.8 lower
A cylinder of gas is at room temperature ( 20oC ). The air conditioner breaks down, and the temperature rises to 52oC. What is the new pressure of the gas relative to its initial pressure
a pi meson of rest energy 139.6 mev moving at a speed of 0.906c collides with and sticks to a proton of rest energy
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