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svetlana [45]
2 years ago
10

What is the relationship between the density of a substance and the speed of sound through that substance?

Physics
1 answer:
xxMikexx [17]2 years ago
8 0

Answer:The greater the density of a medium, the slower the speed of sound. This observation is analogous to the fact that the frequency of a simple harmonic motion is inversely proportional to m, the mass of the oscillating object. The speed of sound in air is low, because air is easily compressible.

Explanation:

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If an object has a mass of 1417g and it is moved 47 meters in 90 seconds, how much power was used?
astraxan [27]

Mass of the object is given as

m = 1417 g = 1.417 kg

now the speed of object is given as

v = \frac{d}{t}

here we know that

d = 47 m

t = 90 s

now we will have

v = \frac{47}{90} = 0.52 m/s

now we will have kinetic energy of the object as

KE = \frac{1}{2}mv^2

KE = \frac{1}{2}(1.417)(0.52)^2

KE = 0.19 J

now the power is defined as rate of energy

so here we can find power as

P = \frac{KE}{t}

P = \frac{0.19}{90} = 2.14\times 10^{-3} W

so above is the power used for the object

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How many times can mechanical energy become chemical energy
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Answer:

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How does the function of the parts of the system contribute to its function as a whole
oksano4ka [1.4K]
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4 0
2 years ago
What is the kinetic energy of a soccer ball which has a mass of 0.8 kg and is kicked at a velocity of 10 m/s
Lubov Fominskaja [6]

Answer:

Explanation:

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Answer:

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Explanation:

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