Physics, 17.09.2019 19:40 MileenaKitana

Why do reflecting telescopes usually have a secondary mirror in addition to a primary mirror?

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Physics, 22.06.2019 06:20, kimilew

Oxygen undergoes an isentropic expansion from 120 degree c and 280 kpa absolute to 140 kpa absolute. determine the final temperature of the oxygen and the amount of work per kg of o_2 produced in the process if it is adiabatic.

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Physics, 22.06.2019 18:30, raywalker3410

Adisk with a radius of r is oriented with its normal unit vector at an angle q with respect to a uniform electric field. which of the following would result in an increase in the electric flux through the disk? check all that apply? a. increasing the area of the disk b. decreasing the given orientation angle of the disk c. decreasing the strength of the electric field d. increasing the given orientation angle of the disk, but not exceeding an angle of 90

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Physics, 22.06.2019 18:30, leslylinares454

Abaseball is thrown from the outfield toward the catcher. when the ball reaches its highest point, which statement is true? (a)its velocity is not zero, but its acceleration is zero. (b) its velocity and its acceleration are both zero. (c) its velocity is perpendicular to its acceleration. (d) its acceleration depends on the angle at which the ball was thrown. (e) none of the above statements are true.

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Physics, 22.06.2019 21:20, aniyahrhs1213

The strong nuclear force acts over a small distance than the electrostatic force. true or false