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zubka84 [21]
3 years ago
12

A bucket is raised from a well by means of a rope which is wound round a wheel of diameter 77cm. Given that the bucket ascends i

n 1 minute 28 seconds with a uniform speed of 1.1m/sec, calculate the number of complete revolution the wheel makes in raising the bucket.
Mathematics
1 answer:
VARVARA [1.3K]3 years ago
4 0

Answer:

The wheel will make 40 revolutions.

Step-by-step explanation:

We are given;

Diameter = 77 cm = 0.77m

Radius = 0.77/2

Radius = 0.385 m

Speed = 1.1 m/s

time = 1min 28 sec = 88 sec

Now, we know that;

Distance = speed×time

Thus;

Distance = 1.1 × 88

Distance = 96.8 m

Also,

Number of revolution = distance/circumference

Number of revolutions = 96.8/(2 × π × 0.385)

Number of revolutions ≈ 40

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Answer:

A. 7.07 units

Step-by-step explanation:

Use the distance formula for coordinates:

d=\sqrt{(x_{2}-x_{1})^2 +(y_{2}-y_{1})^2   }

Fill in the coordinates accordingly:

d=\sqrt{(1-(-4))^2+(-3-2)^2}

which simplifies down to

d=\sqrt{25+25}

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Plug that into your calculator and you'll get the answer

4 0
2 years ago
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8 0
2 years ago
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Simplify: −z^3+5k^6−(−z^3+10k^6)
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6 0
3 years ago
Suppose a van gets 22 mi/gal. The distance traveled D(g) is a function of the gallons of gas used
babymother [125]

Answer:

a) Table and graph showed

b) The distance will be 231 miles

c) Yes

Step-by-step explanation:

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5 0
3 years ago
What is the solution to the equation 7(a – 10) = 13 – 2(2a 3)?
geniusboy [140]
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a = 7.
7 0
3 years ago
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