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strojnjashka [21]
3 years ago
15

A weather system is moving from west to east. you look at a weather map and see that you are in an area of closely spaced isobar

s with the center just to your east, but the spacing of the isobars increases away from you. what would you forecast for wind conditions?
Geography
2 answers:
katrin2010 [14]3 years ago
4 0
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.

Below are the choices that should be accompanied with your question:

A) Winds will increase.
B) Winds will increase then decrease.
C) Winds will stay the same.
<span>D) Winds will decrease.
</span> 
The answer is A - Winds will increase. Isobars<span> are lines on a weather map that connect points of equal pressure.</span>
Morgarella [4.7K]3 years ago
3 0

Answer:

A weak wind speed.

Explanation:

  • As isobars are represented by the pressure pattern of the area, in an area of the closely spaced isobars the pressure is high as compared to the far spaced isobars that have a low pressure as the flow of the winds is clockwise around the pressure areas the winds blow from the west to the east and thus push the weather system to the east.
  • <u>As the pressure gradient causes the winds to blow or the high to the low and low to high price areas so as the greater or more pressure gap will result in more intensity of the stormy weather. </u>
  • <u>As we move away from the spacing of the isobars that are toward the east the winds speed slowly decreases.</u>
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Read 2 more answers
Analysis of a rock sample that it contains 6.25% of its original uranium-235. How old is the rock? How do you know?
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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!!!

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