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xenn [34]
3 years ago
12

Help me with number 8 please :(

Physics
1 answer:
stiks02 [169]3 years ago
5 0
Is there an answer key? with all words on it,
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A cylindrical bucket, open at the top, is 28.0 cm high and 11.0 cm in diameter. A circular hole with a cross-sectional area 1.55
svlad2 [7]

Answer:

so height is 0.1283 m

Explanation:

given data

height = 28 cm

diameter = 11 cm

cross-sectional area = 1.55 cm2

water flow rate  =  2.46×10^−4 m3/s

to find out

How high will the water in the bucket rise

solution

we know that here

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mgh = 1/2 mv²

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2mgh=mv²

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√(2gh) = v    ....................1

h = v²/2g   ...............2

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2.46×10^−4 = V 1.55×10^−4

V = 1.5870 m/s

so from 2

h = v²/2g

h = 1.5870²/ 2(9.81)

h = 0.1283 m

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4 years ago
A sound whispered at one focus of a whispering gallery can be heard at the other focus. Two people are standing in a whispering
Temka [501]

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3 years ago
If a girl is running along a straight road with a uniform velocity 1.5m/s find her acceleration ​
Jlenok [28]

Answer:

Dear user,

Answer to your query is provided below

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Now the magnitude of velocity (speed) can stay constant while the direction is changing. This is the case in circular motion.

In the question above, it is mentioned that the girl is moving along a straight road. Therefore no change in direction of velocity.

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Which of the following situations best represents a set of balanced forces?
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