Physics, 04.07.2020 14:01 jenkinjack7654
A body starting from rest moves with uniform acceleration until it attains a speed of 100m/s after 20 s. It maintained this speed for the next 30s and came to rest by uniformly deceleration in 30s. (a.) Find its acceleration. (b)Draw the velocity-Time graph of the motion (c)Using the information given by the graph calculate
The average speed for the whole journey
The total distance travelled
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To do work, this truck uses energy stored in chemical fuel and an electrical battery. how much total energy does this truck put out?
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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.
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Physics, 22.06.2019 14:30
In order to do work, the force vector must be question 1 options: in a different direction than the acceleration vector. in a different direction than the displacement vector. in the same direction as the displacement vector and the motion. in the same direction as the acceleration vector.
Answers: 1
A body starting from rest moves with uniform acceleration until it attains a speed of 100m/s after 2...
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