Step-by-step explanation:
ans will be 12 X will be the ans
For this case we have the following equation:

Where,
w: The weight of a spring in pounds
E: the energy stored by the spring in joules.
Substituting values we have:

Making the corresponding calculation:
Answer:
the approximate weight of the spring in pounds is:
Answer:
A=120
B=20
C=20
Total area=160 cm2
This is really weird because the numbers dont look proportional to the shape but according to the data it should be correct :/
Answer:
It decreased
Step-by-step explanation:
It decreased. Assuming that the temperature is 100 and it is now reduced by 60% then the temperature will be at 40 and if it increased by 80% then the final temp is 72. So it is 48% of the original temp.
Slope is 2 and the y intercept is 4