The power that the runner is exerting while running is 814.1 Watts.
<h3>
How to find the power?</h3>
In this question, we need to find the power (in watts) that the runner is exerting while running.
Power is defined as the quotient between the used energy and the time in which that energy is used.
So here we have:
![P = \frac{700 Kcal}{1h}](https://tex.z-dn.net/?f=P%20%3D%20%5Cfrac%7B700%20Kcal%7D%7B1h%7D)
And we know that <u><em>1 kcal/h = 1.163 watts</em></u>
Then we can rewrite:
![P = \frac{700 Kcal}{1h} = 700 Kcal/h = 700*(1.163 W) = 814.1 W](https://tex.z-dn.net/?f=P%20%3D%20%5Cfrac%7B700%20Kcal%7D%7B1h%7D%20%3D%20700%20Kcal%2Fh%20%3D%20700%2A%281.163%20W%29%20%3D%20814.1%20W)
If you want to learn more about energy, you can read:
brainly.com/question/21222010
Joaquin will need 2 and four fifths cups.
<h3>What is proportion?</h3>
Proportion is an equality between ratios. Two ratios are proportional when the result of dividing the numerator and denominator of the first ratio is equal to the result of dividing the second.
With that said, if Joaquin wants to follows the original recipe he will need to increase the quantite of butter, but proportionately. Thus:
1/2 of a cup of butter -- serves 5 people
x cup of butter -- serves 28 people
5x = 14
x = 14/5 = 2,8
Therefore, Joaquin will need 2 and four fifths cups.
See more about math at: brainly.com/question/17387142
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Area of the bottom rectangle = 6 x 2 = 12 in²
Area of the left rectangle = 3 x 2 = 6 in²
Area of the right rectangle = 2 x 4 = 8 in²
Area of the front and back triangle = 2( 1/2 x 6 x 2) = 12 in²
Total Surface area = 12 + 6 + 8 + 12 = 38 in²
Answer: 38 in²