A pail of water can be whirled in a vertical circular path suchthat no water is spilled. Why does the water remain in the pail,even when the pail is upside down above your head?

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Suppose all the mass of the Earth were compacted into asmall spherical ball. What radius must the sphere have sothat the acceleration due to gravity at the Earth’s newsurface would equal the acceleration due to gravity at thesurface of the Sun?

In a home laundry dryer, a cylindrical tub containing wetclothes is rotated steadily about a horizontal axis, as shown inFigure P7.61. So that the clothes will dry uniformly, they aremade to tumble. The rate of rotation of the smooth-walled tubis chosen so that a small piece of cloth will lose contact withthe tub when the cloth is at an angle of θ = 68.0° above thehorizontal. If the radius of the tub is r = 0.330 m, what rate ofrevolution is needed in revolutions per second?

A 70 kg motorcyclist turns along a circular arc of radius 80 m, at a speed of 23 m/s. At what angle (in degrees) from the vertical would he tilt.

A car must take a flat circular exit of radius 35 m. Get the maximum speed the car can have without being swept away, (b) the angle at which I must incline the circular exit so that the car traveling at maximum speed I don't need friction to get around the curve. The mass of the car is 1500 Kg.

Three point particles, with masses 4.00 kg, 3.00 kg and 6.00 kg are located along a straight line at 2.00 m, 4.00 m and -6.00 m, respectively, in a uniform gravitational field. What is the location of center of gravity of this system? m.

A satellite is in a circular orbit at an altitude of 250 km above the earth's surface. If an onboard rocket provides an instantaneous AV of 200 m/s in the direction of the satellite's motion, calculate the altitude of the new orbit's apogee.

At what rate must a cylindrical spaceship rotate if occupants are to experience simulated gravity of 0.58 gg? Assume the spaceship's diameter is 25 mm , and give your answer as the time needed for one revolution