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3 years ago

Which is an example of kinetic energy?

Geography

2 answers:

Lady bird [3.3K]3 years ago

6 0

Answer:

An airplane has a large amount of kinetic energy in flight due to its large mass and fast velocity.

Otrada [13]3 years ago

3 0

Moving Car, Flying Airplane, Wind mills and a lot

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Some regions along the plane of the Milky Way appear dark because A) there are no stars in these regions. B) stars in these regi

Masja [62]

<h2>Answer: C) stars in these regions are hidden by interstellar dust grains.</h2>

Explanation:

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ELEN [110]

The correct answer is (c.) coastal. coastal deserts are characterized by moderately warm to cool temperatures. The cool and long winters of these coastal deserts are also followed by warm and long summers. A good example of this type of desert is the Atacama of Chile.

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MariettaO [177]

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thx but its off topic

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3 years ago

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: