During an April rainstorm, it rained for six straight days. The amount of rainfall for each day was 0.8 inch, 2.15 inches, 2 inc
2 answers:
Answer:
6.12 inches.
Step-by-step explanation:
We have been given that during an an April rainstorm, it rained for six straight days. The amount of rainfall for each day was 0.8 inch, 2.15 inches, 2 inches, 1.02 inches, 0.05 inch, and 0.1 inch.
The total amount of rain would be sum of amount of rain on each day.
Therefore, the total amount of rainfall is 6.12 inches.
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Answer:
Work done in stretching the spring = 7.56 lb-ft.
Step-by-step explanation:
Normal length of the spring = 8 in or ft
= ft
If the spring has been stretched to 11 inch then the stretched length of the spring is = 11 in
= ft
Force applied to stretch the spring = 12 lb
By Hook's law,
F = kx [where k is the spring constant and x = length by which the spring is stretched]
12 = k()
k = 18
Work done (W) to stretch the spring by ft will be
W =
=
=
= 9()²
= 7.56 lb-ft