A heat engine under development is expected to transfer heat from reservoir A to reservoir B. Which is a requirement for the two reservoirs
A. the temperature of reservoir A must be equal to the temperature of reservoir B
B. the temperature of reservoir A must be greater than the temperature of reservoir B
C. The internal energy of reservoir A must be greater than the internal energy of reservoir B
D. The internal energy of reservoir A must be equal to the internal energy of reservoir B

idn

step-by-step explanation:

geometry: triangles

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call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584

3

step-by-step explanation:

divide 13.5 by 9 to get the scale factor. it equals 1.5

2 * 1.5 = 3