Answers: 2
Physics, 21.06.2019 14:30
A5 nc point charge is at the origin and a second 3 nc point charge is on the x-axis at x = 0.8 m. find the magnitude and direction of the electric field on the x-axs at x = 0.2 m. you may express the direction by letting positive field mean the positive x direction
Answers: 1
Physics, 22.06.2019 04:30
In a system, when potential energy decreases, then entropy also decreases. true false
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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 11:10
While standing outdoors one evening, you are exposed to the following four types of electromagnetic radiation: yellow light from a sodium street lamp, radio waves from an am radio station, radio waves from an fm radio station, and microwaves from an antenna of a communications system. rank these type of waves in terms of increasing photon energy.
Answers: 3
Which of the following characteristics of stars primarily determines a star's color?
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brightn...
History, 07.11.2019 21:31
Mathematics, 07.11.2019 21:31
Chemistry, 07.11.2019 21:31
Mathematics, 07.11.2019 21:31
Biology, 07.11.2019 21:31
Mathematics, 07.11.2019 21:31
Chemistry, 07.11.2019 21:31
Biology, 07.11.2019 21:31
History, 07.11.2019 21:31