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4 years ago

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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3 years ago

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Current I flows along the positive z-direction in the inner conductor of a long coaxial cable and returns through the outer cond

PtichkaEL [24]

Answer:

A) determine magnetic fields

For 0 ≤ r ≤ a

Magnetic field = ∅ $\frac{rI}{2\pi a^2}$

For a ≤ r ≤ b

Magnetic field = ∅ $\frac{I}{2\pi r}$

For b ≤ r ≤ c

Magnetic field in the region = ∅ $\frac{I}{2\pi r} [ c^2 - r^2 / c^2-b^2 ]$

For r ≥ c

magnetic filed in the region = 0

B ) attached below

Explanation:

<u>A) Determine the magnetic field in the following regions</u>

i) For 0 ≤ r ≤ a

Magnetic field = ∅ $\frac{rI}{2\pi a^2}$

attached below is the detailed solution

ii) For a ≤ r ≤ b

Magnetic field = ∅ $\frac{I}{2\pi r}$

attached below is the detailed solution

iii) For b ≤ r ≤ c

Magnetic field in the region = ∅ $\frac{I}{2\pi r} [ c^2 - r^2 / c^2-b^2 ]$

attached below is the detailed solution

iv) For r ≥ c

magnetic filed in the region = 0 and this is because the net current enclosed in the region = 0

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3 years ago

________ can exist without ________, but ________ cannot exist without ________.

Zolol [24]

B.
Voltage can exist without current, but current cannot exist without voltage.

6 0

3 years ago

Can I have some help

earnstyle [38]

I think is D cuz all Yoou really need to do is look at the graph

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Answer:

The answer is "Rigor mortis".

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