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Paha777 [63]
3 years ago
7

PLEASE HELP. Will give 70 points!!! Demonstrate In A Brief Paragraph How The Search To Explain Planetary Orbits Exemplifies The

Scientific Method and the use of models.
Mathematics
1 answer:
Murljashka [212]3 years ago
4 0

People firstly believe that the planets move in a circular orbit until Newton came up with his hypothesis by inventing calculus so that we could understood and calculated planetary orbits and their accuracy.

Explanation:

Everyone assumed the planets were perfect circles until Newton came up with an idea. Slowly people would make maps of the orbits that added circles on circles, and they could never really explain about the movement of the planet. They simply say that planets move on circles but they lacked the math to explain or prove it. Then Newton came up with an idea of inventing calculus so that we could understood and calculated planetary orbits and their accuracy.

Firstly people used their observations and say that the orbits looked like circles, then they developed their models and did the math, and proposed their hypothesizes which were wrong, until Newton came along and tried to match a model that used elliptical orbits and invented the math that allowed him to make predictions with it. His model worked for most planets.

However he could not explain about the planet Mercury for instance since it was a very strange orbit. Then after the Einstein's theory of General Relativity he could also explain very deeply about it.

Scientists and Astronomers made hypothesizes that there was another planet orbiting too close to the sun to see with telescopes, called Vulcan, that explained mercury's orbit before Einstein's theory. Then long after we had telescopes which was good enough to see if there was a planet orbiting closer to the sun than mercury.  

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She needs to spent 14.55 more
7 0
3 years ago
What is the difference between the smallest six-digit whole number and the greatest 4-digit number
spin [16.1K]
What's the smallest six-digit whole number possible?
It is 100000

try counting, six digits, right? if you even take 1 off from it, it's no longer six digits, so it is the smallest six-digit whole number possible.

what's the greatest 4-digit number?
It should be 9999
try adding 1 to it, it becomes five-digit number.

So, 9999 is the greatest 4-digit whole number possible.

To get a difference, subtraction.
100000 - 9999 = 90001


Just as a tip, for six digit number, 000000 does not work, as it is same as 0

8 0
3 years ago
Pls!!!!! Answer this I only have like 10 minutes. Pls no links either. I really need help pls!!!
Serjik [45]

Answer:

y-intercept = 2

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4 0
3 years ago
A random sample of 10 college students was drawn from a large university. Their ages are 22, 17, 27, 20, 23, 19, 24, 18, 19, and
inessss [21]

Answer:

The test statistic  t = 1.219 < 2.262 at 5% level of significance

we accept significance of  level that the population mean is less than 20.

Step-by-step explanation:

Given ages are 22, 17, 27, 20, 23, 19, 24, 18, 19, and 24

The random sample (n) = 10

Null hypothesis (H0): μ = 20

Alternative hypothesis(H1) : μ < 20 (left tailed test)

we will use statistic 't' distribution with small sample 10 < 30

t = \frac{χ-μ}{\frac{S.D}{\sqrt{n-1} } }

mean (χ) = sum of observations divided by no of observations

mean(x) = ∑x / n = \frac{22+17+27+20+23+19+24+18+19+24}{10} = 21.3

x         x - mean           (x-mean)^2

22      22-21.3  =  0.7       0.49

17       17-21.3    = -4.3      18.49

27      27-21.3 = 5.7         32.49

20      20-21.3 =-1.3          1.69

23      23-21.3 = 1.7          2.89

19       19-21.3 = -2.3        5.29

24       24-21.3 = 2.7       7.29

18        18-21.3 = -3.3      10.89

19        19-21.3 = -2.3      5.29

24       24-21.3 = -=2.7    7.29

                                   S^{2} = \frac{∑(x-mean)^2}{n-1}= \frac{92.1}{10-1}

                                   S^{2} = \frac{92.1}{9} = 10.2

                                  S = 3.198

The test statistic (t) = t = \frac{21.3-20}{\frac{3.198}{\sqrt{10-1} } }

                            t = 1.219

The degrees of freedom = n-1 = 10-1 =9

Tabulated value of t for 9 degrees of freedom at 5% level of significance

= 2.262

since calculated t < tabulated t we accept the null hypothesis

we accept significance of  level that the population mean is less than 20.

5 0
4 years ago
Find the value of x if sin80 = Cos(90-x)
AlladinOne [14]

Answer: 80

Step-by-step explanation:

Sin x = cos (90-x)

Like sin 30 = cos (90-30) =cos 60

So

90-x=90-80

Then

X=80

Verify your solution by finding the sum of the angles of sin and cos, it will be 90

6 0
3 years ago
Read 2 more answers
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