Physics, 03.03.2020 07:52 Elepeodowke
When a train first starts going down the railroad, it is very difficult for it to get going. When it comes to a stop, it has a hard time slowing down. Why is this?
A: balanced forces
B: unbalanced forces
C: inertia
Answers: 3
Physics, 22.06.2019 09:10
The air that we breath is made mostly of which gaseous molecule
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Physics, 22.06.2019 10:10
Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. the scale reads 830 n for the first 2.4 s after the elevator starts moving, then 930 n for the next 2.4 s. part a what is the elevator's speed 4.8 s after starting? express your answer with the appropriate units.
Answers: 2
Physics, 22.06.2019 13:30
The two stars in a certain binary star system move in circular orbits. the first star, alpha, has an orbital speed of 36 km/s. the second star, beta, has an orbital speed of 12 km/s. the orbital period is 137 d. a) what is the mass of the star alpha? b) what is the mass of the star beta?
Answers: 1
When a train first starts going down the railroad, it is very difficult for it to get going. When it...
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