Physics, 07.08.2019 20:30 jrfranckowiak
The diameter of mars is 6794km, and its minimum distance from the earth is 5.58×10^7 km. when mars is at this distance, find the diameter of the image of mars formed by a spherical, concave, telescope mirror with a focal length of 1.95 m .
Answers: 1
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Suppose that 27 j of work is needed to stretch a spring from its natural length of 6 m to a length of 9 m. (a) how much work is needed to stretch the spring from 12 m to 14 m? j (b) how far beyond its natural length will a force of 78 n keep the spring stretched?
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Two point charges are separated by a certain distance. how does the strength of the electric field produced by the first charge, at the position of the second charge, change if the second charge is doubled? a. the field does not change b. the field strength decreases by half. c. the field strength doubles d. the field strength quadruples
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The diameter of mars is 6794km, and its minimum distance from the earth is 5.58×10^7 km. when mars i...
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