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SIZIF [17.4K]
3 years ago
6

Water enters a shower head through a pipe of radius 0.0112 m at 3.25 m/s. What is it’s volume flow rate? (Unit= m^3/s)

Physics
2 answers:
kenny6666 [7]3 years ago
7 0

Answer:

1.28 \times 10 ^{-3} m^3/s

Explanation:

Given that the radius of the pipe, r =0.0112 m

So, the area of the cross-section, a= \pi (0.0112)^2 = 3.941\times 10^{-4} m^2

Speed of water in the pipe, v=3.25 m/s

Volume flow rate =av= 3.941\times 10^{-4} \times 3.25 = 1.28\times 10 ^{-3} m^3/s

Hence, the volume flow rate is 1.28 \times 10 ^{-3} m^3/s

tangare [24]3 years ago
4 0

Answer:

For Acellus the answer is 0.00128

Explanation:

Trust me

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128 is the ans cuz N is also lnown as mass

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128

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Consider two copper wires. one has twice the length and twice the cross-sectional area of the other. how do the resistances of t
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Answer:

R = ρ L / A     where R is the resistance and ρ the resistivity:

R2 / R1 = (L2 / A2) / (L1 / A1) = L2 * A1 / (L1 * A2)

R2 / R1 =  (2 L * A) / (L * 2 A) = 1

Their resistances should be the same.

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2 years ago
A 16 kg block is dragged over a rough, hor-
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Gold has a density of 19.3 grams per cubic centimeter. what is the density of gold in metric tons per cubic meter?
valina [46]
In order to determine this, we will first need some conversions. We will need to convert metric tons and grams into one another and also cubic centimeters to cubic meters into one another.

1 metric ton = 1000 kg

1 kg = 1000 grams

1 metric ton = 10⁶ grams

So 10⁶ grams / metric ton


1 meter = 100 cm
1 m³ = (100)³ cm³
1 m³ = 10⁶ cm³

So 10⁶ cm⁶ / m³

Now, we manipulate the given value:

(19.3 grams / cm³) * (1 metric ton / 10⁶ grams) * (10⁶ cm³ / m³)
= 19.3 metric tons / m³

The density of gold is 19.3 metric tons meter meter cubed.
6 0
3 years ago
Which of the following has to happen before the eardrum begins to vibrate with the same frequency as the source of the sound wav
djverab [1.8K]

Answer:

C. The outer ear has to collect the sound waves and lead them to the middle ear.

Explanation:

In the process of hearing, the first thing that happens is that sound waves enter the outer ear through a passage called "auditory canal" that reaches the eardrum.

The movement of the incoming sound waves causes the eardrum to vibrate and transmit these vibrations to three tiny bones of the middle ear.

4 0
4 years ago
Read 2 more answers
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