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2 years ago

Why was heat produced at the formation of the solar system?

Geography

1 answer:

Tanya [424]2 years ago

8 0

Explanation:

everything can be found in the picture

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Which phrase best define wind

Lyrx [107]

The perceptible natural movement of the air, especially in the form of a current of air blowing from a particular direction

7 0

3 years ago

a rural kansas watershed that is ungauged has an area of 475 acres and a main channel length of 6870 feet with an average slope

dlinn [17]

Answer:

$\mathbf{Q_p =682 \ \ ft^3/s}$

Explanation:

Given that:

Area = 475 acres

The length of the channel (L) = 6870 feet

The average water shield slope (S) = 100 feet/mile

Since; 1 mile = 5280 feet

Burst duration D = 15 min

∴

100 feet/mile = 100/5280

The average water shield slope (S) = 5/264

Using hydrograph method:

The time of concentration $t_c = 0.0078L^{0.77} S^{-0.385}$

where;

L = 6870

S = 5/264

$t_c = 0.0078(6870)^{0.77} (\dfrac{5}{264})^{-0.385}$

$t_c =32.34$ min

Since 60 min = 1 hour

32.34 min will be (32.34*1)/60

= 0.539 hour

Lag time $T_l = 0.67\times t_c$

$T_l = 0.67\times 32.34$

$T_l = 21.6678\ min$

The time to peak i.e

$T_p = \dfrac{D}{2}+ T_L \\ \\ T_p = \dfrac{15}{2}+ 21.6678 \\ \\ T_p = 29.168 \ min$

$T_r = \dfrac{T_p}{5.5} \\ \\ T_r = \dfrac{29.1678}{5.5} \\ \\ T_r = 5.30 \ min$

Since D = 15 min is not equal to $T_r$ , then we hydrograph apart from $T_r$ duration lag time.

Then;

$T_p \ ' = T_p + \dfrac{D-t_r}{4} \\ \\ T_p \ ' = 29.168 + \dfrac{15-5.30}{4} \\ \\ T_p \ ' = 31.593$

Now, we need to determine the peak discharge $Q_p$ by using the formula:

$Q_p = \dfrac{484 \times A}{T_p \ '}$

where

484 = peak factor

Recall that A = 475 acres, to miles, we have:

A = 0.7422 mile²

$T_p \ ' = 31.593/60$

∴

$Q_p = \dfrac{484 \times 0.7422}{\dfrac{31.593}{60}}$

$\mathbf{Q_p =682 \ \ ft^3/s}$

7 0

3 years ago

What is the natural ecosystem / biome in the Arctic?

spayn [35]

Answer:

Tundra ecosystems are treeless regions found in the Arctic and on the tops of mountains, where the climate is cold and windy

Explanation:

7 0

3 years ago

Where on earth can a solar eclipse be observed (as long as the sky is clear)?

Alika [10]

The path of totality, where the Moon will completely cover the Sun and the Sun's atmosphere (corona) can be seen.

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2 years ago

Why is it considered courageous for the musicians to play

NARA [144]

The reason why it is considered courageous for the musicians to play

"under the open sky" is because they are facing a dangerous situation.

<h3>What is Courage?</h3>

This refers to the quality that means that there is the strength to face fear and do the right thing.

Hence, it is important to note that for someone to display courage, then that means that they are facing threats or fear and need to overcome it.

Please note that your question is incomplete so I gave you a general overview to help you get a better understanding of the concept.