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matrenka [14]
3 years ago
15

Two equal-mass stars maintain a constant distance apart of 8.0 x 1010 m and rotate about a point midway between them at a rate o

f one revolution every 12.6 yr.
(a) Why don’t the two stars crash into one another due to the gravitational force between them?
(b) What must be the mass of each star?
Physics
1 answer:
natka813 [3]3 years ago
6 0
U know an object is moving along a circular path feels a centrifugal force which is opsit to gravitational attraction force. both these 2 forces balanced each other
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In a thunderstorm, the thunder occurs at the same time as lightning. Explain how does a person hears the thunder 5s after he see
sergey [27]

Answer:

If you count the number of seconds between the flash of lightning and the sound of thunder, and then divide by 5, you'll get the distance in miles to the lightning: 5 seconds = 1 mile, 15 seconds = 3 miles, 0 seconds = very close. Keep in mind that you should be in a safe place while counting.

Explanation:

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lorasvet [3.4K]

Answer:

B. The maximum angle decreases

Explanation:

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3 years ago
What is work? how do we solve for work?​
slava [35]

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Monochromatic light of wavelength λ=136.8μ m is shone at normal incidence through a thin film of thickness t resting atop a full
inn [45]

Answer:

1.8 × 10⁻⁸ Hm

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