Answer:
(a) 13536.10J
(b) 27072.20J
Step-by-step explanation:
(a) Height of tank (h) = 4 feet = 4/3.2808 = 1.22m
Volume of water in full tank = 4ft×5ft×4ft = 80ft^3
Volume of water in half tank = 1/2 × 80ft^3 = 40ft^3
Density of water = 62.4lb/ft^3
Mass of water = density × volume = 62.4 × 40 = 2496lb = 2496×0.45359kg = 1132.16kg
Work done to empty half of the tank = mgh = 1132.16×9.8×1.22 = 13536.10J
(b) Work done to empty all of the tank = 2 × work done to empty half of the tank= 2 × 13536.10J = 27072.20J
Answer:
54 wpm
Step-by-step explanation:
This is a simple rate word problem and all we have to do is put these two numbers into words per minute which is essentially words divided by minutes
Basically, all we have to do is divide the number of words by the minutes to get our answer
So 702 divided by 13 is 54
Jaime types with a speed of 54 words per minute
I hope I helped and have a wonderful day!
Answer:
Step-by-step explanation:
0.0039
173
22 3806
- 22
1606
- 154
66
66
Therefore, 3806/22 = 173
Answer:
- The scenario is translated to Lisbeth's berries + Janelle's berries = 8 quarts.
- The expression x represents the quarts of berries that Lisbeth picks each hour.
- The girls picked berries for 3 hours
Step-by-step explanation:
i) Lisbeth picks x quarts berries every hour is given.
ii) Janelle picks (x + three fourths) quarts berries every hour is also given.
iii) It is also give that if Janelle and Lisbeth pick berries for 3 hours then the
equation representing that fact is given by 3(x) + 3(x+three-fourths) = 8
iv)From the above three equations we can say that the following are true
- The scenario is translated to Lisbeth's berries + Janelle's berries = 8 quarts.
- The expression x represents the quarts of berries that Lisbeth picks each hour.
- The girls picked berries for 3 hours.