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adell [148]
3 years ago
9

Which is not a device for reproducing sound?

Physics
1 answer:
Alona [7]3 years ago
7 0
Phonograph. Hope that helps
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According to the Can Manufacturers Institute, the energy used to make an aluminum can from recycled aluminum is 5% of the energy
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Answer:

H = 109.2 TJ.

Explanation:

Please see the attachment below.

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3 years ago
Sean applies a force of 100N to move a box 5 meters. How much work did he do?
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Answer:

500 Joules

Explanation:

W(work)= force * distance

w = 100*5

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Roots that grow horizontally are called
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A model engine accelerated forward from rest along a straight track at 10.0 m/s2 for 3.0 seconds. It then accelerates coward at
Mrac [35]

Answer:

17.2 seconds

Explanation:

Given:

v₀ = 0 m/s

a₁ = 10.0 m/s²

t₁ = 3.0 s

a₂ = 16 m/s²

t₂ = 5.0 s

a₃ = -12 m/s²

v₃ = 0 m/s

Find: t

First, find v₁:

v₁ = a₁t₁ + v₀

v₁ = (10.0 m/s²) (3.0 s) + (0 m/s)

v₁ = 30 m/s

Next, find v₂:

v₂ = a₂t₂ + v₁

v₂ = (16 m/s²) (5.0 s) + (30 m/s)

v₂ = 110 m/s

Finally, find t₃:

v₃ = a₃t₃ + v₂

(0 m/s) = (-12 m/s²) t₃ + (110 m/s)

t₃ = 9.2 s

The total time is:

t = t₁ + t₂ + t₃

t = 3.0 s + 5.0 s + 9.2 s

t = 17.2 s

Round as needed.

4 0
3 years ago
The gravitational force between two objects is 100 N.
defon
200N is the answer (at least thats what I think)
5 0
3 years ago
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