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If you were standing on a spinning turntable holding barbells close to your chest and you extended your arms, how would your spin be affected? Why?
A train has 4 locomotives (73 tons each) and 60 coal cars (42 tons each). The train is going down a 2.4% incline, What is the mass of the entire train
A thin, light wire is wrapped around the rim of a wheel. The wheel rotates without friction about a stationary horizontal axis that passes through the center of the wheel. The wheel is a uniform disk with radius 0.28. An object of mass 4.0 is suspend..
A group of explorers in Antarctica can obtain water only by melting ice. They wish to make 4 cups of coffee, determine the amount of heat required and the amount of power required
A car of mass = 1300 travelling at 56.0 enters a banked turn covered with ice. The road is banked at an angle, and there is no friction between the road and car's tires. What is the radius of the turn if = 20.0 (assuming the car continues in uniform ..
find the magnitude and direction of the impulse delivered to the ball by the floor.
The coefficient of performance of a refrigerator is defined as the ratio of heat extracted, At what rate will this refrigerator deliver heat to the room in which it is operating when it is running
Earth's atmosphere, the electric field above Earth's surface has been measured to be 150 N/C downward at an altitude of 250 m and 165 N/C downward at the altitude of 400 m. compute the volume charge density of the atmosphere.
Chef at the infamous Fattening Tower of Pizza tosses the spinning disk of uncooked pizza dough into the air. The disk's diameter increases during the flight, whereas its rotational speed.
A barbell spins around a pivot at its center . The barbell consists of two small balls, each with mass m = 460 grams, at the ends of a very low mass rod whose length is L = 24 cm. The barbell spins with angular speed ω = 50 radians/s.
A mass of 2.80 kg is attached to a single spring such that the maximum velocity of the oscillation is 2.47 m/s and period is 1.82 seconds. What is the amplitude of the oscillation
If a toaster is plugged into a source of alternating voltage with an rms value of 66.2 V, find the resistance of the toaster's heating element
A group of people with total mass 1500 kg stands in a boat with mass 12,000 kg at rest in frictionless water. If the whole group walks 6.5 m from bow to stern, how much does the boat move in meters
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