Solution:
Given:
pressure ratio,
= 6.75
Formula used:

(1)
where,
= pressure ratio
γ = specific heat ratio of a gas( here, helium gas it is 1.667)
Now,
Eqn (1 ) is for thermal efficiency of an ideal gas, using eqn (1), we get
\eta = 1- \frac{1}{2.1469} = 0.5342
percentage thermal efficiency, \eta =53.42%
Answer:
Tc = 424.85 K
Explanation:
Given that,





HEAT FLOW Q is

= 47123.88 w per unit length of rod
volumetric heat rate





= 424.85 K
Ans:
1.some families of farmers are poor so they are forced to cultivate on small lands.
2.farmers have not enough resources to keep good care of the crops.
3.land nowadays is so expensive that they afford a small piece of land to cultivate.
4.farmers need helpers when there are no helpers, the farmers need to make there land small in order to cultivate.
Explanation:
i was just able to write 4 sorry. :(
Answer:
books = []
fp = open("bookTitles.txt")
for line in fp.readlines():
title = line.strip()
if title not in books:
books.append(title)
fp.close()
fout = open("noDuplicates.txt", "w")
for title in books:
print(tile, file=fout)
fout.close()
except FileNotFoundError:
print("Unable to open bookTitles.txt")
Answer:
“An OSHA 300 log is where companies record the injuries that occur at the workplace,” said Luna. “By law, they have to report all the injuries to OSHA.” The OSHA law gives workers and their unions the right to have access to injury logs.