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Contact [7]
3 years ago
9

How are particles behaving in solid vs gas when it comes to sound?

Physics
1 answer:
Mariana [72]3 years ago
5 0

Answer:

Sound waves have to travel through solids, gases, and liquids. Sound waves vibrate through the air in matter. Molecules in solids are packed tightly. This allows sound to travel faster through a solid than gas.

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In a wire, when elongation is 4 cm energy stored is E. if it is stretched by 4 cm,
Serga [27]

Answer:

4E

Explanation:

From the question given above, the following data were obtained:

Initial elongation (e₁) = 4 cm = 4/100 = 0.04 m

Initial energy (E₁) = E

Final elongation (e₂) = 0.04 + 0.04 = 0.08 m

Final energy (E₂) =?

The energy stored in a s spring is given by:

E = ½Ke²

Where

E => is the energy

K => is the spring constant

e => is the elongation

From:

E = ½Ke²

Energy is directly proportional to the elongation. Thus,

E₁/e₁² = E₂/e₂²

With the above formula, we can obtain the final energy as follow:

Initial elongation (e₁) = 0.04 m

Initial energy (E₁) = E

Final elongation (e₂) = 0.08 m

Final energy (E₂) =?

E₁/e₁² = E₂/e₂²

E / 0.04² = E₂ / 0.08²

E / 0.0016 = E₂ / 0.0064

Cross multiply

0.0016 × E₂ = 0.0064E

Divide both side by 0.0016

E₂ = 0.0064E / 0.0016

E₂ = 4E

Therefore, the final energy is 4 times the initial energy i.e 4E

6 0
3 years ago
Your car is initially at rest when your hit that gas and the car begins to accelerate at a rate of 1.464 m/s/s. The acceleration
tamaranim1 [39]

Answer:

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Explanation:

6 0
3 years ago
Based on the image below what would an observer on the nighttime side of earth observe?
sertanlavr [38]
I would love to help; where’s the picture?
3 0
3 years ago
Ron bicycles forward with an acceleration of 2.1 m/s2. If he is applying a forward force
Mila [183]

Answer:

195

Explanation:

he can only apply as much force as his body  mass so it would be 195

3 0
3 years ago
Black holes are the final stage of what type of star?
creativ13 [48]

Answer:

the neutron star becomes a black hole

7 0
3 years ago
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