The length of an Earth day is determined by the time required for approximately one

Please answer this fast and here only

Vaselesa [24]

Answer:

1) a) $r_{R,I} = 1150\,m$ , b) $r_{R,II} = 3400\,m$ , c) $r_{R,III} = 2750\,m$ .

2) a) $r_{R,I} = 45,2\,km$ , b) $r_{R, II} = 28,15\,km$ , c) $r_{R,III} = 51,8\,km$ .

Explanation:

The scale factor is defined by the following expression:

$n = \frac{r_{S}}{r_{R}}$ (1)

Where:

$n$ - Scale factor.

$r_{S}$ - Scale distance, in centimetres.

$r_{R}$ - Real distance, in centimetres.

1) If we know that $n = \frac{1}{50000}$ , $r_{S,I} = 2,3\,cm$ , $r_{S,II} = 6,8\,cm$ and $r_{S,III} = 5,5\,cm$ , then the actual distances in metres are:

$r_{R,I} = \frac{r_{S,I}}{n}$

$r_{R,I} = \frac{2,3\,cm}{\frac{1}{50000} }$

$r_{R,I} = 115000\,cm$

$r_{R,I} = 1150\,m$

$r_{R,II} = \frac{r_{S,II}}{n}$

$r_{R,II} = \frac{6,8\,cm}{\frac{1}{50000} }$

$r_{R,II} = 340000\,cm$

$r_{R,II} = 3400\,m$

$r_{R, III} = \frac{r_{S, III}}{n}$

$r_{R,III} = \frac{5,5\,cm}{\frac{1}{50000} }$

$r_{R,III} = 275000\,cm$

$r_{R,III} = 2750\,m$

2) If we know that $n = \frac{1}{50000}$ , $r_{S, I} = 90,4\,cm$ , $r_{S, II} = 56,3\,cm$ and $r_{S,III} = 103,6\,cm$ , then the actual distance in kilometres is:

$r_{R,I} = \frac{r_{S,I}}{n}$

$r_{R,I} = \frac{90,4\,cm}{\frac{1}{50000} }$

$r_{R,I} = 4520000\,cm$

$r_{R,I} = 45,2\,km$

$r_{R,II} = \frac{r_{S,II}}{n}$

$r_{R,II} = \frac{56,3\,cm}{\frac{1}{50000} }$

$r_{R,II} = 2815000\,cm$

$r_{R, II} = 28,15\,km$

$r_{R, III} = \frac{r_{S, III}}{n}$

$r_{R,III} = \frac{103,6\,cm}{\frac{1}{50000} }$

$r_{R,III} = 5180000\,cm$

$r_{R,III} = 51,8\,km$

4 0

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Mars2501 [29]

Answer:

Both explain how the movement of the Earth's crust occurs.

6 0

3 years ago

The main reason african countries had difficulty establishing democracies was because of poverty

Anna [14]

The answer is a) True

Since Independence, almost every African country has been plagued by the cycle of Poverty.

Poverty has led to the development of a culture of bribery and kickbacks in between almost every aspect of the government.

With little investment in education and health, the average person has suffered even more.

Many African countries have taken on billions of dollars of debt that they can never pay off.

This has resulted in a 'debt trap' where the little money a country is able to generate, has to be paid in the forms of loans.

Lack of government funds, poor infrastructure, low education, high corruption has also resulted in numerous local rebels and quasi-militia factions mushrooming to challenge what they see as failed governments.

When you combine all these factors, you can see how poverty has resulted in a Pandora's box of problems for African countries.

4 0

3 years ago

You are halfway between the equator and the South pole and one-quarter of the way around the Earth to the west of the Prime Meri

irga5000 [103]

Answer:

All of the lines of longitude to the west of the prime meridian until 180 degrees are in the western hemisphere. Ninety degrees west is a line that passes through North America, including Lake Superior and the Yucatan Peninsula.

7 0

3 years ago

If beavers built a dam on a stream, the kinds of plants and animals that lived around the stream would not be affected. ¿this st

polet [3.4K]

Answer:

False

Explanation: Fish can't swim up the stream. Pond plants & animals would start to live there instead of stream plants & animals.

4 0

4 years ago

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