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irina1246 [14]
2 years ago
8

Which of the following is not a function of PACs?

Physics
2 answers:
Katena32 [7]2 years ago
5 0

Answer:

i think D

hope this helps

let me know if i'm wrong i will change the answer

Explanation:

Natasha_Volkova [10]2 years ago
3 0
It is definitely D.
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Using a rope that will snap if the tension in it exceeds 356 N, you need to lower a bundle of old roofing material weighing 478
klasskru [66]

Answer:

a) 2.5 m/s²

b) 6.12 m/s

Explanation:

Tension of rope = T = 356N

Weight of material = W = 478 N

Distance from the ground = s = 7.5 m

Acceleration due to gravity = g = 9.81 m/s²

Mass of material = m = 478/9.81 = 48.72

Final velocity before the bundle hits the ground = v

Initial velocity = u = 0

Acceleration experienced by the material when being lowered = a

a) W-T = ma

⇒478-356 = 48.72×a

\Rightarrow \frac{122}{48.72} = a

⇒a = 2.5 m/s²

∴ Acceleration achieved by the material is 2.5 m/s²

b) v²-u² = 2as

⇒v²-0 = 2×2.5×7.5

⇒v² = 37.5

⇒v = 6.12 m/s

∴ Velocity of the material before hitting the ground is 6.12 m/s

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3 years ago
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VikaD [51]

Answer:

Blue eye-color gene

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2 years ago
Which particle of the atom has a negative charge?
lilavasa [31]
D, electron, the nucleus is not a single particle to begin with, the proton has a positive charge, a neutron has a neutral charge or no charge, and an electron has a negative charge
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Which wave must have a medium to travel?
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Letter B

without a medium, there is nothing to compress, hence, no wave. A fast- medium like a gas (air) is easy to compress and allows waves to move through it easily. a slow medium, like a liquid, is still pretty fast, but not as fast as air.

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The maximum oxygen uptake is known as the
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<span>The maximum oxygen uptake is known as the VO max.</span>
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