1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
yan [13]
3 years ago
10

A child fills a bucket with sand so that the bucket and sand together weigh 10 lbs, lifts it 2 feet up and then walks along the

beach, holding the bucket at a constant height of 2 ft above the ground. How much work is done on the bucket after the child has walked 100 ft?
Mathematics
1 answer:
Juli2301 [7.4K]3 years ago
5 0

Total weight, w = 10 lbs.

Height of the bucket, h = 2 feet.

Distance walked, d = 100 ft.

Now, work done in moving the bucket at a height of 2 feet.

W = mgh

W = 2× 32.17×100

W = 6434  lbs ft²/s²

Work done in moving bucket in horizontal direction is zero because it is perpendicular to the force.

Therefore, work done is 6434  lbs ft²/s² .

Hence, this is the required solution.

You might be interested in
If m = 27 and n = 4, what is the value of the following expression?
wel

Answer:

2

Step-by-step explanation:

m - 5 • n + 5

plug it in

27- 5 * 4+5

well, we gotta follow PEMDAS (there are no parentheses)

5*4

20

now we have

27-20+5

20+5

25

27-25

2

4 0
2 years ago
The ratio of men to women in a movie theater is 3:5. As two more men and one more woman walk in, the ratio of men to women becom
34kurt

Answer:

C. 20

Step-by-step explanation:

Let's say M is the original number of men and W is the original number of women.

M / W = 3 / 5

(M+2) / (W+1) = 2 / 3

Let's cross multiply both equations:

5M = 3W

3(M+2) = 2(W+1)

Let's simplify the second equation:

3M + 6 = 2W + 2

3M + 4 = 2W

From the first equation:

M = 3/5 W

Substitute:

3 (3/5 W) + 4 = 2W

9/5 W + 4 = 2W

4 = 1/5 W

W = 20

There were originally 20 women.

Let's check our answer.  That would mean that M = 3/5 W = 12.

After 2 men walk in and 1 woman, W = 21 and M = 14, so 14/21 = 2/3.  Looks like the answer is correct!

Answer C.

7 0
3 years ago
If the sin 90° is 1, then the cos ____ °= _____.
borishaifa [10]
Maybe:
Cos90=0
I’m not sure of the question here
5 0
3 years ago
Read 2 more answers
2. Find the distance between (-2,1) and (3,4).
Nina [5.8K]

Answer:

\sqrt{34} or 5.83095

Step-by-step explanation:

Use the distance formula \sqrt{(x_{2}-x_{1} )^{2}+(y_{2}-y_{1} )^2 }

Make sure to round the answer appropriately if not asked for in square root form!!

8 0
3 years ago
17+36=z-37 what is z
sp2606 [1]

Answer:

The correct answer is 90

Step-by-step explanation:

17 + 36= z- 37   ADD 17 AND 36

53= z-37        BRING 37 OVER TO 53 AND ADD

z = 90           FINAL ANSWER

8 0
2 years ago
Other questions:
  • Neil bought 5 books. The average price of 2 books is 5 dollars. The average price of the rest of the books is 4 dollars. Find th
    12·1 answer
  • Giving Brainliest!!! According to the bar charts, approximately how many females received recommendations for promotion?
    13·2 answers
  • 0.0000126 in scientific notation
    6·1 answer
  • Construct Arguments A store manager
    12·1 answer
  • Can you PLEASE HELP ME!!!
    7·2 answers
  • Please show work and solve 4a^2 x 3a^5
    11·1 answer
  • Which of the following coordinate planes shows the graph of the function y-3=-2(x+2)?
    8·1 answer
  • Please answer!! will give brainliest
    12·2 answers
  • 13-28 Sketch the region enclosed by the given curves and find its area.
    9·1 answer
  • Please helpWrite 78 percent as fraction In simplest form
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!