1. When an object's distance from another object is changing it must be
A. accelerating
B. in...
Physics, 04.09.2020 22:01 tbenjamin1299
1. When an object's distance from another object is changing it must be
A. accelerating
B. in motion:
C. moving fast
D. at rest.
Answers: 2
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Energy flows from the producer level to the level. is called
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Two identical stars with mass m orbit around their center of mass. each orbit is circular and has radius r, so that the two stars are always on opposite sides of the circle. (a) find the gravitational force of one star on the other. (b) find the orbital speed of each star and the period of the orbit. (c) how much energy would be required to separate the two stars to infinity?
Answers: 1
Physics, 22.06.2019 22:50
The illuminance of a surface varies inversely with the square of its distance from the light source. if the illuminance of a surface is 120 lumens per square meter when its distance from a certain light source is 6 meters, by how many meters should the distance of the surface from the source be increased to reduce its illuminance to 30 lumens per square meter?
Answers: 3
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