A natural gas pipeline with a diameter 0.250 m delivers 1.55 cubic meters of gas per second. What is the flow speed of the gas in the pipeline?
What will be an ideal response?
31.6 m/s
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A batter hits a home run in which the ball travels 110 m horizontally with no appreciable air resistance. If the ball left the bat at 50° above the horizontal just above ground level, how fast was it hit?
What will be an ideal response?
In the topography of the ocean basins, high points such as seamounts and abyssal hills are composed of
A) plutonic rock. B) volcanic rock. C) accumulated sediments washed down from the continents.
The asthenosphere is part of the
A) crust. B) lithosphere. C) mantle. D) outer core.
A laminar flow is desired from a tank with a well-rounded entrance to a 6-mm-diameter pipe that drains the tank. A container catches 20 L of 20°C water in 4 minutes. Determine the Reynolds number so one can decide if the flow is laminar.
(A) 972 (B) 1220 (C) 1770 (D) 1920