In a carnival ride, passengers stand with their backs against the wall of a cylinder. the cylinder is set into rotation and the floor is lowered away from the passengers, but they remain stuck against the wall of the cylinder. for a cylinder with a 2.0-m radius, what is the minimum speed that the passengers can have for this to happen if the coefficient of static friction between the passengers and the wall is 0.25?
answers
2.3 m/s
3.0 m/s
4.9 m/s
8.9 m/s
it depends on the mass of the passengers.

The law of conservation of energy states that energy cannot be created or , energy can be from one substance to another. the first blank is ' destroyed ' and for the second blank is ' transferred '

An architect plans to use solar energy to heat the next house he designs. what principle of absorption and infrared energy can be applied to the design of the new house? how could she apply to those principals?

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