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Nikitich [7]
3 years ago
8

Why do you think the speed of sound is higher in solids, than liquids and gases?

Physics
1 answer:
mr Goodwill [35]3 years ago
8 0

Answer:

Explanation:

Particles of a solid are closely packed, and  when a solid is hit to produce a sound the kinetic energy present in the solid will cause the particles to vibrate vigorously in the intermolecular spaces in the solid, whereas the paticles of liquids and gases are rather further apart therefore having large intermolecular spaces between particles.

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Heated lithium atoms emit photons of light with an energy of 2.961 × 10−19 J. Calculate the frequency and wavelength of one of t
tatiyna

Answer:

4.5 x 10¹⁴ Hz

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1.8 x 10⁵ J

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Explanation:

E = energy of photons of light = 2.961 x 10⁻¹⁹ J

f = frequency of the photon

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U = energy of 1 mole of photons

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U = (6.023 x 10²³) (2.961 x 10⁻¹⁹)

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Answer:

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