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Verdich [7]
3 years ago
12

All scientific theories on the solar system are based on-

Physics
2 answers:
S_A_V [24]3 years ago
6 0
It has to be C, non-observable information. Biased is definitely wrong, current evidences can't be right because scientific theories have been established long before we were born and non-testable was already listed by someone else that they put it and got it wrong.
I hope this helps.
joja [24]3 years ago
5 0
It's not non testable facts..I just took the test and got it wrong.
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Electric forces stay the same as distance changes electric field change true or false
Kisachek [45]

Answer:

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A positive charge is placed in an electric field that points west. What direction is the force on the positive particle? I think
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3 0
3 years ago
A planet has been observed orbiting a nearby star. This star has a mass of 3.5 solar masses, and the planet is 4.2 AU from the s
kondaur [170]

Answer:

4.6 years

Explanation:

This is solved using Kepler's third law which says:

T^2=\frac{4\pi ^2}{GM} a^2

Where

T = Orbital period of the planet (in seconds)

a = Distance from the star (in meters)

G = Gravitational constant

M = Mass of the parent star (in kg)

From the information given

M = 3.5M_{sun} = 6.96*10^{30} kg

a=4.2AU = 6.28*10^{11} meters

G = 6.67*10^{-11}m^3kg^{-1}s^{-2}

We put this into Kepler's law and get:

T=\sqrt{\frac{4\pi ^2}{6.67*10^{-11}*6.96*10^{30}} (6.28*10^{11})^3}=145,128,196 seconds.

This when converted to years is 4.6 years.

4 1
3 years ago
Read 4 more answers
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