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Illusion [34]
3 years ago
13

A standing wave of the third harmonic is induced in a stopped pipe of length 1.2 m. The speed of sound through the air of the pi

pe is 340 m/s. How many antinodes form in the standing wave pattern in the pipe?
Physics
1 answer:
stira [4]3 years ago
7 0

Answer:

Answer is 3.

Explanation:

Start by putting the values in the formula i.e.

Lenght 1.2m

The speed of sound through the pipe 340m/s.

Put it in the formula and the answer is 3.

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A wire 6.60 m long with diameter of 2.05 mm has a resistance of 0.0310 Ω.
Alex73 [517]

Answer:

1.551×10^-8 Ωm

Explanation:

Resistivity of a material is expressed as shown;.

Resistivity = RA/l

R is the resistance of the material

A is the cross sectional area

l is the length of the wire.

Given;

R = 0.0310 Ω

A = πd²/4

A = π(2.05×10^-3)²/4

A = 0.000013204255/4

A = 0.00000330106375

A = 3.30×10^-6m

l = 6.60m

Substituting this values into the formula for calculating resistivity.

rho = 0.0310× 3.30×10^-6/6.60

rho = 1.023×10^-7/6.60

rho = 1.551×10^-8 Ωm

Hence the resistivity of the material is 1.551×10^-8 Ωm

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3 years ago
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suter [353]

An object with more mass has more kinetic energy than an object with less mass, if both objects are moving at the same speed. <em>(c)</em>

6 0
3 years ago
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Nat2105 [25]
The answer is A

Explanation: the conservation of matter means that the mass stays the same
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What happens to the image when u make the hole bigger in a pinhole camera?​
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Answer:

more light enters and disturbs the formation of the image.

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A converging lens can produce both real and virtual images depending on the position of the object. Explain when converging lens
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Explanation:

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