1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
schepotkina [342]
3 years ago
12

Rosalinda wants to calculate the mass of Earth using Kepler’s laws or Newton’s universal law of gravitation.Which data would all

ow her to find the mass of Earth?
the mass of the Sun and the orbital period of the moon
the moon’s orbital period and distance from Earth
Earth’s distance from the Sun and the moon’s orbital period
Earth’s orbital period and distance from the Sun
Chemistry
2 answers:
GREYUIT [131]3 years ago
7 0

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:

P^2=\frac{4\pi ^2}{k^2(M_{sun}+M_{earth})}a^3

Where,

P =  orbital period determined in days

k = Gaussian Gravitational constant with value 0.01720209895

M_{sun} = Mass of the sun which is known to us which is 1.989\times 10^{30}kg

M_{Earth} = 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.

ELEN [110]3 years ago
5 0
The best and most correct answer among the choices provided by the question is the second choice "<span>the moon’s orbital period and distance from Earth" 


</span> <span>The Earth's mass is </span>5.9736<span> x 10</span>24<span> 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 </span>5.9<span>sextillion tonnes. Phew, that's a lot of mass.</span>

I hope my answer has come to your help. God bless and have a nice day ahead!
You might be interested in
Which formula can be used to find velocity if kinetic energy and mass are known?
astraxan [27]

Answer:

v =  \sqrt{ \frac{2ke}{m} }

option D is the correct option.

Here,

If an object of mass 'm' moving with a velocity'v' then,

kinetic \: energy =  \frac{1}{2} m {v}^{2}  \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:    {v}^{2}  =  \frac{2ke}{m}  \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  {v}^{2}  =  \sqrt{ \frac{2ke}{m} }

hope this helps...

Good luck on your assignment..

5 0
3 years ago
In the combustion of hydrogen gas, hydrogen reacts with oxygen from the air to form water vapor.
Yuliya22 [10]
The balanced chemical equation is:

2H2 + O2 ---> 2H2O

We are given the amount of the product produced from the reaction. This will be the starting point for the calculations.

355 g H2O ( 1 mol H2O/ 18.02 g H2O) ( 1 mol O2 / 2 mol H2O ) ( 32 g O2 / 1 mol O2 ) = 315.205 g O2
6 0
3 years ago
What is the mass of a 2.5 mole sample of MgO2
MrRa [10]
Mass = no. of moles x molecular weight
m = n x Mr
m = 2.5 mol x (24 + [16 x 2])
m = 140g
6 0
3 years ago
Are there more bones in the arm than in the leg?
hodyreva [135]
They have the same amount but if you count the wrist it was more then the leg and ankle.
6 0
3 years ago
Read 2 more answers
A researcher placed 25.0 g of silver chloride, AgCl, in sunlight and allowed the substance to decompose completely to form silve
steposvetlana [31]

Answer:

A. The law of definite proportions states that all pure samples of a particular chemical compound contain the same elements combines in the same proportion by mass.

B. The law of conservation of mass states that during ordinary chemical reactions, matter can neither be created or destroyed.

Note: The full question is as follows;

A researcher placed 25.0 g of silver chloride, AgCl, in sunlight and allowed the substance to decompose completely to form silver, Ag, with the release of chlorine gas, Cl2. The gas was collected in a container during the decomposition. The researcher determined that the mass of the silver formed was 18.8 g, and the mass of the chlorine gas formed was 6.2 g. The equation for the reaction is:

2AgCl ----> 2Ag + Cl2

a. State the law of definite proportions. Then use the researcher's data to confirm the law of definite proportions. Show your calculations.

b. State the law of conservation of matter. Then use the researcher's data to confirm the conservation of matter. Show your calculations.

Explanation:

A. Mass of silver obtained from AgCl = 18.8g.

Percentage mass of silver in the chloride = (18.8/25.0) * 100 = 75.2 %

Mass of chlorine obtained from AgCl = 6.2

Percentage mass of chlorine = (6.2/25) * 100 = 24.8 %

In one mole of AgCl with a molar mass of 143.3 g/mol; mass of silver = 107.8, mass of Cl = 35.5

Percentage mass of Ag = (107.8/143.3) * 100 = 75.2%

Percentage mass of Cl = (35.5/143.3) * 100 = 24.8%

Since the percentages by mass of Ag and AgCl obtained from the sample is the same to that obtained from a mole of AgCl, the law of definite proportions which states that all pure samples of a particular chemical compound contain the same elements combined in the same proportion by mass is verified.

B. Mass of reactant; AgCl sample = 25.0

Mass of products; At = 18.8 g; Cl = 6.2 g

Sum of products masses = 18.8 + 6.2 = 25.0 g

Therefore mass of reactant = mass of products.

This is in accordance with the law of conservation of mass which states that during ordinary chemical reactions, matter is neither created nor destroyed.

8 0
3 years ago
Other questions:
  • Which trends are observed when the elements in Period 3 on the Periodic Table are considered in order of increasing atomic numbe
    5·1 answer
  • If chlorine gas is bubbles through an aqueous solution of sodium iodide,the result is elemental iodine and aqueous sodium chlori
    14·1 answer
  • How does sandstone change into quartzite
    14·1 answer
  • 1.
    8·1 answer
  • A mixture of C3H8C3H8 and C2H2C2H2 has a mass of 2.8 gg . It is burned in excess O2O2 to form a mixture of water and carbon diox
    11·1 answer
  • What is the difference between an element and a compound? (p.s. it due in 5 mins ASAP so hurry.)
    5·1 answer
  • 1.what is the mass of an atom.<br>2.what is the difference between an ion and atom.​
    8·1 answer
  • What two atoms are held together by a covalent bond in NaHCO3
    10·1 answer
  • Solution: Will give brainliest
    8·1 answer
  • Treading water is used as efficient tool for what?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!