Answer:
180 fb*lb
45 ft*lb
Step-by-step explanation:
We have that the work is equal to:
W = F * d
but when the force is constant and in this case, it is changing.
therefore it would be:
Where a = 0 and b = 30.
F (x) = 0.4 * x
Therefore, we replace and we would be left with:
We integrate and we have:
W = 0.4 / 2 * x ^ 2
W = 0.2 * (x ^ 2) from 0 to 30, we replace:
W = 0.2 * (30 ^ 2) - 0.2 * (0 ^ 2)
W = 180 ft * lb
Now in the second part it is the same, but the integral would be from 0 to 15.
we replace:
W = 0.2 * (15 ^ 2) - 0.2 * (0 ^ 2)
W = 45 ft * lb
52 ×.65= X
The answer would be $80. Hope i could be helpful :)
*Just a FYI, I am going to assume that you want to put the word coat between "and" and "110", and also "costs" and "100".
If a hat and a coat combined is 110 dollars, it is like this-
H=hat
C=coat
H+C= $110
If the coat costs 100 more than the hat, it is like this-
110-*100= h
* We replaced the c with 100
So we know that the coat costs 100, and since it is up to 110, it is automatically assumed that the coat is 100.
110-100 is 10, so the coat costs 100 dollars, while the hat costs 10.
Coat is 100, Hat is 10
Hope it helped!
What sheet??
can you write more information...
When you see anything raised to the 1/2, it is just the square root. Similarly, anything raised to the 1/3 is the cubed root, and so on.
All the question is asking for is the square root of 64.<span />
