Respuesta :
The best and most correct answer among the choices provided by the question is the second choice "the moon’s orbital period and distance from Earth"
The Earth's mass is 5.9736 x 1024 kg. That's a big number, so let's write it out in full: 5,973,600,000,000,000,000,000,000 kg. You could also say the Earth's mass is 5.9sextillion tonnes. Phew, that's a lot of mass.
I hope my answer has come to your help. God bless and have a nice day ahead!
The Earth's mass is 5.9736 x 1024 kg. That's a big number, so let's write it out in full: 5,973,600,000,000,000,000,000,000 kg. You could also say the Earth's mass is 5.9sextillion tonnes. Phew, that's a lot of mass.
I hope my answer has come to your help. God bless and have a nice day ahead!
Answer: The correct answer is Earth's orbital period and distance from the Sun.
Explanation: Rosalinda can use Kepler's Laws to determine the mass of the Earth. Third law of Kepler is the most convenient for this purpose.
Expression for Kepler's Third Law is:
[tex]P^2=\frac{4\pi ^2}{k^2(M_{sun}+M_{earth})}a^3[/tex]
Where,
P = orbital period determined in days
k = Gaussian Gravitational constant with value 0.01720209895
[tex]M_{sun}[/tex] = Mass of the sun which is known to us which is [tex]1.989\times 10^{30}kg[/tex]
[tex]M_{Earth}[/tex] = Mass of Earth which has to be determined
a = Semi major axis which is the distance of Earth from the sun.
Hence, Earth's orbital period and its distance from the sun is useful in determining the mass of Earth.
