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Ann [662]
4 years ago
9

HELP ASAP

Physics
2 answers:
Scorpion4ik [409]4 years ago
8 0
The answer is B. helium-filled balloon, since sound travels the slowest through gases.
horsena [70]4 years ago
6 0
The answer is B. You’re welcome
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My experience as a learner
Artist 52 [7]

So I'm guessing that the question is describing your experiences in both these classes? Nobody else knows how you experienced these classes because it was your experience, not mine or anyone else's. You'll have to explain how you felt about the class, and whether it was difficult or not, etc.

8 0
3 years ago
Physics and chemistry is the study of what? ​
LenKa [72]
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Explanation:

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8 0
3 years ago
Why we don’t feel atmospheric pressure?
Veseljchak [2.6K]

Answer:

The reason we can't feel it is that the air within our bodies (in our lungs and stomachs, for example) is exerting the same pressure outwards, so there's no pressure difference and no need for us to exert any effort.

8 0
3 years ago
Read 2 more answers
How far will 350 j raise a 7 kg mass?
DaniilM [7]
W=350 J=M g H
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6 0
3 years ago
The magnetic field at the centre of a toroid is 2.2-mT. If the toroid carries a current of 9.6 A and has 6.000 turns, what is th
ziro4ka [17]

Answer:

Radius, r = 0.00523 meters

Explanation:

It is given that,

Magnetic field, B=2\ mT=2.2\times 10^{-3}\ T

Current in the toroid, I = 9.6 A

Number of turns, N = 6

We need to find the radius of the toroid. The magnetic field at the center of the toroid is given by :                  

B=\dfrac{\mu_oNI}{2\pi r}

r=\dfrac{\mu_oNI}{2\pi B}  

r=\dfrac{4\pi \times 10^{-7}\times 6\times 9.6}{2.2\pi \times 2\times 10^{-3}}  

r = 0.00523 m

or

r=5.23\times 10^{-3}\ m

So, the radius of the toroid is 0.00523 meters. Hence, this is the required solution.

7 0
3 years ago
Read 2 more answers
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