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Varvara68 [4.7K]
3 years ago
14

How can we mathematically express Newton's law of gravity? (In the following, F is the force of Gravity, G is a constant; m and

M are the masses or two bodies (such as the Earth and the Sun); and r is the distance between the centers of mass of the two bodies.)

Mathematics
2 answers:
jeka57 [31]3 years ago
7 0

the solution is in the attachment

WITCHER [35]3 years ago
7 0

Answer:

Step-by-step explanation:

Force of gravitational attraction, Fg = GMm/r^2

Where,

G = gravitational constant

M = mass of object 1

m = mass of object 2

r = distance between the point masses.

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Lenny thinks the following expressions are equivalent:
julia-pushkina [17]

Yes, he is correct, using the distributive property you get the same answer

3 0
3 years ago
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How many 7-digit phone numbers are possible, assuming that the first digit can’t be a 0 or a 1? (b) re-solve (a), except now ass
sladkih [1.3K]
A. We are going to form 7 digit numbers from the set {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}

where the first digit cannot be 0 or 1.

so we have 8 choices for the 1. digit, and 10 choices for all the other 6 digits.

this means there are 8*10*10*10*10*10*10=8* 10^{6} possible numbers.

b.

consider the numbers which start with 911. There are 10*10*10*10=10 ^{4} such numbers, since for the 4th, 5th, 6th and 7th digits we have 10 choices.

then we remove this number, from the one we found in a:

There are in total 8* 10^{6}-10^{4}=7,990,000 numbers which don't start with 911.


Answer:

a.8*10^{6}
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3 0
3 years ago
Which system of equations could be used to determine how many of each coin you have
kirza4 [7]
<h3>Answer: Choice A</h3>

0.10d + 0.05n = 2.25

d = 2n

================================================

Explanation:

n = number of nickels

d = number of dimes

we have twice as many dimes as nickels, so we could have something like 18 dimes and 9 nickels. Algebraically we would write d = 18 and n = 9. The equation that fits this is d = 2n. The answer is between A and B at this point.

We rule out choice B since the 0.05d is incorrect. It should be 0.10d to represent the total value of all the dimes.

Choice A is correct

d = number of dimes

0.10d = value of all the dimes in dollars

n = number of nickels

0.05n = value of all the nickels in dollars

0.10d + 0.05n = total value from both coins combined

2.25 =  total value from both coins combined

0.10d + 0.05n = 2.25

8 0
3 years ago
One skeleton in a museum has 189 bones.another skeleton has 232 bones. How many bones are in the two skeleton?
gayaneshka [121]

421 is the correct answer.

8 0
2 years ago
Is this right I am positive but I need to pass this test
FrozenT [24]

Answer:

It's not a polygon

Step-by-step explanation:

Polygons are always 2D. This shape is 3D. Everything else is fine.

Please mark as Brainliest! :)

Have a nice day.

3 0
3 years ago
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