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3 years ago

The property that distinguishes the thermosphere most is the presence of

2 answers:

6 0

B. Ozone. It's Ozone because thermo in the word thermosphere means heat. The word sphere means the shape, which is the shape of Earth, and you're asking for the most of the presence, which only means in earth, that's why I pick B.

Scilla [17]3 years ago

3 0

The property that distinguishes the thermosphere most is the presence of C. Heat

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In nuclear fission and fusion reactions mass is converted into energy. The average person in US uses around 100,000,000 J of ene

daser333 [38]

Answer:

a) The yearly energy consumption for a US population of 300 million is $3\times 10^{16} J/year$

b) The energy that would be released if a 60 kg person were converted entirely into energy is $5.4\times 10^{18}$ Joules.

c) 180 years would this amount of energy support a population of 300 million.

Explanation:

a) Average energy consumed by single person of US = 100,000,000 J/year

Then 300 million US citizen will consume:

300 million = 300 × 1,000,000 = $3\times 10^8$

The yearly energy consumption for a US population :

$100,000,000 J/year\times 3\times 10^8=3\times 10^{16} J/year$

The yearly energy consumption for a US population of 300 million is $3\times 10^{16} J/year$

b) $E = m\times c^2$

E = Energy from converted mass of m

c = speed of light

Given mass of person = m = 60 kg

$E=60 kg\times (3\times 10^8 m/s)^2 = 5.4\times 10^{18} J$

c) Energy calculated in part (b) = $E=5.4\times 10^{18} J$

The yearly energy consumption for a US population of 300 million in an year = $3\times 10^{16} J/year$

Let the that would be supported by $5.4\times 10^{18}$ Joules of energy be x.

$x\times 3\times 10^{16} J/year=5.4\times 10^{18} J$

$x=\frac{5.4\times 10^{18} J}{3\times 10^{16} J/year}=180 years$

180 years would this amount of energy support a population of 300 million.

4 0

2 years ago

What is the largest source of freshwater on earth?.

DaniilM [7]

GROUNDWATER is the largest source of freshwater on earth.

4 0

2 years ago

What is the equation in slope intercept form of the line perpendicular to y=2x-5 that passes through the point with coordinated

pentagon [3]

Answer:

$y=-\frac12x- 4$

Explanation:

y=2x-5

y=mx+b

perpendicular = slope is -1

y=-1/2x+b

Passes throught 2,-5

-5=-1/2(2)+b

-5=-1+b

b=-4

y=-1/2x-4

Hope this helps!

3 0

2 years ago

Which geographer is considered the founder of modern geography?

Murljashka [212]

D. Alexander von Humboldt

5 0

2 years ago

If BD= BC ,BD=5x-26, BC=2x+1, and AC=43, find AB ?

trasher [3.6K]

Answer:

Explanation:

here,

BD=BC

BD=5x-26

BC=2x+1

AC=43

AB=?

now,

BD=BC

or, 5x-26=2x+1

or, 5x-2x=1+26

or, 3x=27

or, x=9

replacing x,

BC=2x+1

=2*9+1

=19

then,

AC=AB+BC

or, 43= AB+19

or, 43-19=AB

or, 24=AB

6 0

3 years ago