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slamgirl [31]
3 years ago
6

To raise an arm upward, the muscle on one side of it contracts. What happens to the muscle on the opposite side of the arm?

Physics
2 answers:
s2008m [1.1K]3 years ago
6 0

Answer:

it relaxes B

Explanation:

enyata [817]3 years ago
5 0

Answer:

It relaxes

Explanation:

I took the test I hope it helps

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Pourquoi doit on toujours préciser le référentiel dans le quel est étudié le mouvement d'un système?
Vedmedyk [2.9K]

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Explanation:

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2 years ago
Use newton's third law to explain why a blown up balloon but untied balloon will fly around the room when you let it go? really
sergij07 [2.7K]
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7 0
3 years ago
Given that the frequency of an Em wave is 4THz, what is its wavelength? a) 75,000um b) 75,000nm c) 75,000pm d) 75,000A
shepuryov [24]

Answer:

λ = 75 µm, correct is A

Explanation:

In waves, speed is related to wavelength and frequency

          c = λ f

          λ = c / f

in this exercise indicate the frequency of rationality

          f = 4 THz = 4 10¹² Hz

let's calculate

        λ = 3 10⁸/4 10¹²

        λ = 7.5 10⁻⁵ m = 75 10⁻⁶ m

        λ = 75 µm

5 0
3 years ago
A certain wave has a wavelength of 35 meters and a frequency of 4.0 Hz. What is the speed of the wave? 8.8 m/s 31 m/s 39 m/s 140
MatroZZZ [7]
35
4.0 Hz
*______
   1.40 Hz
+ 8.8m/s
_______
=10.2 Hz m/s(31)m/s(39)m/s(140)m/s
6 0
3 years ago
Read 2 more answers
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