Tom and Mary are at a playground that has two merry-go-rounds. Merry-go-round ‘A’ has a radius 1/3 as long as merry-go-round ‘B’. Tom gets on the outer rim of A and Mary on the outer of B and both begin to rotate their merry-go-rounds. Eventually Tom notices that every time he completes a revolution, Mary also completes a revolutio
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Physics, 22.06.2019 11:10
Which situation will produce the greatest change of momentum
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More solar radiation is absorbed by earth’s surface than by
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Water is siphoned from a large tank and discharges into the atmosphere through a 50-mm diameter tube. the end of the tube is b = 2.1 m below the tank bottom which is a = 7.4 m deep, and viscous effects are negligible. determine the maximum height h over which the water can be siphoned without cavitation occurring. atmospheric pressure is 101.4 kpa, and the water vapor pressure is 1.79 kpa (absolute)
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Physics, 22.06.2019 16:50
Aresistor with an unknown resistance is connected in parallel to a 9 ω resistor. when both resistors are connected in parallel to an emf source of 21 v, the current through the unknown resistor is measured with an ammeter to be 4 a. what is the resistance of the unknown resistor? answer in units of ω.
Answers: 3
Tom and Mary are at a playground that has two merry-go-rounds. Merry-go-round ‘A’ has a radius 1/3 a...
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