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Firdavs [7]
3 years ago
6

Does the Atlantic ocean have a high or low amount of CO2?

Geography
1 answer:
Misha Larkins [42]3 years ago
3 0
I think higher but I'm not 100% sure
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James wants to draw a line diagonally across a rectangular piece of paper. If the paper measures 9 inches by 12 inches, what is
sattari [20]

Answer:

15 inches

Explanation:

James needs to use the Pythagoras theorem, which states that in a right-angle triangle, the sum of the squares of the other two sides is equal to the square of the hypotenuse.

c²=a²+b²

we know that a is 9 inches and that be is 12 inches

c²= (9)²+(12)²

c²= 81+144

c²=225

c=√225

c=15

after applying the measures to the Pythagoras theorem formula,

we found out that the length of the straight-edge needs to be 15 inches

3 0
3 years ago
Analysis of a rock sample that it contains 6.25% of its original uranium-235. How old is the rock? How do you know?
Andrews [41]

Answer:

The age of the rock = 2800.6 million years = 2.8 billion years.

A simple method of analysis similar to Carbon dating is used to obtain the required age of the rock. Radioactive substances decay according to first order reaction kinetics. So, plugging all the required parameters into the general equation for amount of substance left in a first order decay gives us the age of the rock.

Explanation:

Half life of Uranium-235 = 700 million years (from literature)

The decay of radioactive substances follow first order reaction kinetics.

The general equation is given as

A(t) = A₀ e⁻ᵏᵗ

A(t) = Amount of radioactive substance left after a particular time = 6.25%

A₀ = initial amount of radioactive substance = 100%

t = time that has passed since the beginning = age of the rock = ?

k = decay constant

The decay constant is related to the half life (T) through the relation,

k = (In 2)/T

k = (0.693/700) = 0.00099 /million years

A(t) = A₀ e⁻ᵏᵗ

6.25 = 100 e⁻ᵏᵗ

0.0625 = e⁻ᵏᵗ

In e⁻ᵏᵗ = In 0.0625 = -2.7726

-kt = - 2.7726

t = (2.7726/0.00099) = 2800.6 million years

t = 2.8 billion years.

Hope this Helps!!!

7 0
3 years ago
what are some of the reasons why christian denominations had more followers in particular areas of north america than other deno
Nikitich [7]

Answer:

they adhere to certain subcultures more than others.

6 0
3 years ago
When the water level of a stream or river exceeds its natural banks, it has reached its
aleksandrvk [35]
<span>When the water level of a stream or river exceeds its natural banks, it has reached its flood stage. This is a real panic stage for people living nearby the rivers and streams that has overflowed its natural banks. This flood situation can destroy any city or village and also drastically impact the financial situation of the area. Most cities and states move their citizens away from the river banks before it reaches this danger stage. Before the emergence of technological advancement, historical evidence proves that many great cities were destroyed due to such situations.  <span /></span>



3 0
3 years ago
Read 2 more answers
All energy resources have limitations. Some renewable energy resources are only effective in certain locations. Which is the BES
Sedbober [7]
ITS D the other person said its two and b but no its d i got this wrong 


ITS D      ITS D         ITS D          ITS D        ITS D           ITS D            ITS D
4 0
3 years ago
Read 2 more answers
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