The quality of a note depends on its?
A. frequency B. pitch C. overtones D. amplitude Correct Answer: Option C C. overtonesA car traveling at 30m‾¹ overcomes a frictional resistance of 100N while moving. Calculate the power developed by the engine. [1 hp = 0.75 kW]
A. 0.23hp B. 0.40hp C. 4.00hp D. 4.40hp Correct Answer: Option C C. 4.00hp Explanation P = FV = 100×30/1000 = 3kW 3/0.75 = 4hpA quantity of water at 20ºC is mixed with another quantity of water at 70ºC. The final steady temperature of the mixture is 40oC. Determine the ratio of the mass of the cold water to that of the hot water?
A. 7:2 B. 3:2 C. 2:5 D. 1:2 Correct Answer: Option B B. 3:2 Explanation Q = MCθ M = QCθ Q/20C : Q/30C = 3:2A body of mass M kg rests on a plane inclined at an angle θ to the horizontal. The component of the weight of the body parallel to the plane is?
A. Mg sin θ B. Mg cos θ C. Mg tan θ D. Mg sec θ Correct Answer: Option A A. Mg sin θProducts
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Land Ownership Principles and Transaction Laws in Nigeria
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