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Physics, 21.06.2019 14:00
How much heat is required to convert 0.3 kg of ice at 0°c to water at the same temperature
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Physics, 21.06.2019 21:00
Amarble, a bowling ball, a basketball, and a baseball are rolling across the floor at 10 m/s. which one has the greatest kinetic energy? the marble the bowling ball the basketball the baseball
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Physics, 22.06.2019 07:50
The ratio of lift to drag l/d for a wing or airfoil is an important aerodynamic parameter, indeed, it is a direct measure of the aerodynamic efficiency of the wing. if a wing is pitched through a range of angle of attack, l/d first increases, then goes through a maximum, and then decreases. consider an infinite wing with an naca 2412 airfoil. estimate the maximum value of l/d. assume that the reynolds number is 9x10^6.
Answers: 2
Physics, 22.06.2019 11:00
If a simple machine reduces the strength of a force, what must be increased?
Answers: 3
Two masses are hung over a massless, frictionless pulley by a string. The mass on the left side is 4...
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