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3 years ago

Why American culture is so difficult to define ?

Geography

2 answers:

DiKsa [7]3 years ago

5 0

Answer:

Because American History has so much density, and fine lines, that its hard to understand all in one shot. Or in one lifetime

Explanation:

Rudiy273 years ago

5 0

I’m sure it’s because of the diversity in our culture. since native Americans, hispanics, African Americans, and other cultures as well. so it’s so hard to define since we have so many diversity in our country. that’s why america doesn’t have a official language like the rest of the countries.

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Answer:

A global rise in sea levels

Explanation:

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4 years ago

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4 years ago

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What is the relation between climate change and sea levels rise

viva [34]

Answer: Sea level can rise by two different mechanisms with respect to climate change.

Explanation:

First, as the oceans warm due to an increasing global temperature, seawater expands—taking up more space in the ocean basin and causing a rise in water level.

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3 years ago

Which arrows indicate weathering and erosion?<br> sedimentary rocks

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Answer:

Melting is indicated by red arrows, cooling is indicated by blue arrows, and weathering and erosion is indicated by green arrows.

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3 years ago

. If the fastest passenger aircraft can fly 0.45 km/s (1000 mph), how long would it take to reach the sun? The galactic center?

nadezda [96]

Answer:

The passenger aircraft would take 10.542 years to reach the Sun from the Earth.

The passenger aircraft would take $1.733\times 10^{10}$ years to reach the gallactic center.

Explanation:

The distance to the sun from the Earth is approximately equal to $1.496\times 10^{8}\,km$ , if the passenger travels at constant speed, then the time needed to reach the sun is calculated by the following kinematic formula:

$\Delta t = \frac{s}{v}$ (1)

Where:

$s$ - Travelled distance, measured in kilometers.

$v$ - Speed of the passenger aircraft, measured in kilometers per second.

$\Delta t$ - Travelling time, measured in seconds.

If we know that $s = 1.496\times 10^{8}\,km$ and $v = 0.45\,\frac{km}{s}$ , then the travelling time is:

$\Delta t = \frac{1.496\times 10^{8}\,km}{0.45\,\frac{km}{h} }$

$\Delta t = 3.324\times 10^{8}\,s$

$\Delta t = 3847.736\,days$

$\Delta t = 10.542\,years$

The passenger aircraft would take 10.542 years to reach the Sun from the Earth.

The distance between the Earth and the galactic center is approximately equal to $2.460\times 10^{17}\,km$ . If the passenger travels at constant speed and if we know that $s = 2.460\times 10^{17}\,km$ and $v = 0.45\,\frac{km}{s}$ , then the travelling time is:

$\Delta t = \frac{2.460\times 10^{17}\,km}{0.45\,\frac{km}{s} }$

$\Delta t = 5.467\times 10^{17}\,s$

$\Delta t = 6.327\times 10^{12}\,days$

$\Delta t = 1.733\times 10^{10}\,years$

The passenger aircraft would take $1.733\times 10^{10}$ years to reach the gallactic center.

3 0

3 years ago