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Art [367]
3 years ago
8

Kepler’s law states that if one object is in orbit around another, the square of the time it takes that object to complete a rev

olution varies directly with the cube of the average radius of the orbit. How is the time affected if the average radius is doubled?
Mathematics
1 answer:
Nitella [24]3 years ago
6 0
Kepler's 3rd Law is t^2 = r^3
Let's say "r" is 2, then
t^2 = 8
t = <span> <span> <span> 2.8284271247 </span> </span> </span>
Basically, t = r^1.5

If you want to know more about Kepler's 3rd Law click here:
http://www.1728.org/kepler3a.htm



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Josh has $72 in his bank account, and earns $7 each
iris [78.8K]

Answer:

week 5 and 107 dollars

Step-by-step explanation:

5 0
2 years ago
What fraction is to the right of 3/4 on the number line
mash [69]

That's basically any number that's larger than 3/4.

4/4

73/6

9/9

11/12

etc.

6 0
2 years ago
Plz help me out :( I really can't fail this
sergey [27]

Answer:

99.37

Step-by-step explanation:

Brief Math lesson:

If you, for example, pay 10% of your income of $100 to charity and 5% of it goes to taxes,

The amount that goes to charity can be found by using:

10% * 100 = 0.1 * 100 = 10

And the amount for taxes is

5% * 100 = 0.05 * 100 = 5

So the total is 15 dollars. And then, subtract that from your salary, so you would earn 85 dollars

We can also just find it by finding how much of a total percentage is being taken and subtract that by 100. (because you would keep the rest of the money)

(100% - (10% + 5%)) * 100 = 85% * 100 = 85

Now, let's apply this information.

First, figure out how much you need to pay in taxes, social security, etc.

15% + 6.44% + 6.2% + 1.45% = 29.09% of your money is given away. So, you would keep 100% - 29.09%, which is 70.91% kept

10.01 dollars an hour at 14 hours is 10.01*14 = 140.14 dollars

Now, multiply the percent of salary you keep by your salary.

140.14 * 70.91% = 140.14 * 0.7091 = 99.373274

This is, rounded,

99.37

Hope this helps! Feel free to ask any questions!

7 0
2 years ago
A health fitness research group wishes to estimate the mean amount of time (in hours) that members of a fitness center spend eac
Arlecino [84]

Answer:

the smallest sample size is 163

Step-by-step explanation:

The computation of the smallest sample size that meets these criteria is shown below:

n = (Z a/2 ×  Standard deviation  ÷ Margin of error ) ^2

Zα/2 at 0.05% LOS is = 1.96 ( From Standard Normal Table )

Standard Deviation ( S.D) = 2.6

Margin of error i.e. ME =0.4

n = ( 1.96 × 2.6 ÷ 0.4) ^2

= 163

Hence, the smallest sample size is 163

6 0
2 years ago
PLEASE HELP ME I DONT UNDERSTAND MY HOMEWORK AND ITS TUE TODAY
Scrat [10]

Answer:

All of the above

Step-by-step explanation:

The question is asking you which equation you can use for you to find the value of the undefined variable, n.

In this case, all of the equations above are eligible to find the value of the variable n since regardless of the variable position, you will yet be able to find its value.

3 0
3 years ago
Read 2 more answers
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