The brightest, hottest, and biggest stars are the brilliant blue stars designated as spectral class O. As is the case of all stars, class O stars move with speeds that are measured in km/s. If a class O star moves with a speed of 255 km/s and has a momentum of 8.62 Ă 10^36 kg ⢠m/s, what is the starâs mass?
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Physics, 21.06.2019 20:00
Spend time observing or thinking about events that involve matter and energy. which events can you explain? which events canât you explain?
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Physics, 21.06.2019 20:30
Which statement best describes how private industry decides where to spend the money on research and development
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Physics, 21.06.2019 23:30
An object starts from rest at point f and speeds up continuously as it moves around an oval. a. choose a point about 1/8 th of the way around the oval from point f, and label it point g. draw a vector to represent the velocity of the object at point g. b. determine the change in velocity vector between points f and g.
Answers: 1
Physics, 22.06.2019 10:30
Awoman holds a book by placing it between her hands such that she presses at right angles to the front and back covers. the book has a mass of m = 1.8 kg and the coefficient of static friction between her hand and the book is Îźs = 0.67. no attempt 50% part (a) what is the weight of the book, fgb in newtons?
Answers: 3
The brightest, hottest, and biggest stars are the brilliant blue stars designated as spectral class...
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