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igor_vitrenko [27]
3 years ago
12

Can somebody help me pls

Physics
1 answer:
gladu [14]3 years ago
7 0

Answer:

B

Explanation:

sound wave is a longitudinal wave and constant frequency is given.

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Two 4.0 kg masses are 1.0 m apart on a frictionless table. Each has 1.0 μC of charge.What is the magnitude of the electric force
xeze [42]

Coulomb's law:

  Force = (<span>8.99×10⁹ N m² / C²<span>) · (charge₁) · (charge₂) / distance²

            = (</span></span><span>8.99×10⁹ N m² / C²<span>) (1 x 10⁻⁶ C) (1 x 10⁻⁶ C)  / (1.0 m)²

            = (8.99×10⁹ x 1×10⁻¹² / 1.0)  N

            =      8.99×10⁻³  N

            =        0.00899 N repelling.

Notice that there's a lot of information in the question that you don't need.
It's only there to distract you, confuse you, and see whether you know
what to ignore.

-- '4.0 kg masses';  don't need it. 
   Mass has no effect on the electric force between them.

-- 'frictionless table';  don't need it.
   Friction has no effect on the force between them,
only on how they move in response to the force.
</span></span>
7 0
3 years ago
The atmosphere's layers
Rasek [7]

Answer:

1. The lowest stratum of the atmosphere

troposphere

2. Most of the earth's ozone is located in the  

stratosphere

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Answer:

is there a picture of it

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ser-zykov [4K]
The correct answer is this one: "length of address." The element that is not part of Aristotle's rhetorical triangle is the length of the address. The rhetorical triangle of Aristotle are the logos, pathos, and ethos. Logos is the logic, Pathos is the audience emotion, Ethos is the speaker's credibility.
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2 years ago
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vfiekz [6]

Answer:

Ohm's Law says

V=I⋅R.

A bit of algebra says

I=VR So V= 110V 25 Ω=4.4VΩ=A

I hope this helps,

Explanation:

7 0
2 years ago
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