Question

The minimum speed for an ice cube of mass m to stay in contact with the top of the inside of an inverted frictionless hemispherical bowl of radius Ris (gR)1/2. If the speed of the ice cube at the top is instead twice the minimum, then the normal force on the ice cube will be equal to:A) 3 mgB) 4 mgC) 5 mgD) (21/2) mgE) 0 mgReason:1.2 Approximately how far from the center of the Earth (in Earth radii Re) would a mass m have to be so that the Earth's gravitational force on it would be 1/6 of what it would be on the Earth's surface?A) 2.00 REB) 2.45 REC) 3.00 RED) 6.00 REE) 1.73 RE

          The minimum speed for an ice cube of mass m to stay in contact with the top of the inside of an inverted frictionless hemispherical bowl of radius Ris (gR)1/2. If the speed of the ice cube at the top is instead twice the minimum, then the normal force on the ice cube will be equal to:A) 3 mgB) 4 mgC) 5 mgD) (21/2) mgE) 0 mgReason:1.2 Approximately how far from the center of the Earth (in Earth radii Re) would a mass m have to be so that the Earth's gravitational force on it would be 1/6 of what it would be on the Earth's surface?A) 2.00 REB) 2.45 REC) 3.00 RED) 6.00 REE) 1.73 RE

Added by Victoria G.

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