Physics, 25.03.2021 21:20 trevorhenyan51
A telescope has a focal length of 2000 mm. At what distance from the mirror will the image of an object 2000 m from the telescope appear?
Answers: 1
Physics, 21.06.2019 18:00
Which two objects have the greatest gravitational force acting between them
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Physics, 22.06.2019 16:30
An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. but she does have devices to measure distance and time accurately. she knows her own mass is 77.4 kg , but she is unsure of the mass of a large gas canister in the airless rocket. when this canister is approaching her at 3.50 m/s , she pushes against it, which slows it down to 1.30 m/s (but does not reverse it) and gives her a speed of 2.60 m/s . what is the mass of the canister?
Answers: 1
A telescope has a focal length of 2000 mm. At what distance from
the mirror will the image of an ob...
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