Physics, 11.08.2019 00:10 brookedeanovich

What’s the velocity of a sound wave traveling through air at a temperature of 18°c (64.4°f)?

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Answer from: jholland03

342 m/s

Explanation:

The velocity of sound in air is approximated as:

v ≈ 331.4 + 0.6 T

where v is the velocity in m/s and T is the temperature in Celsius.

At T = 18:

v ≈ 331.4 + 0.6 (18)

v ≈ 342.2

The velocity is approximately 342 m/s.

Answer from: aebacchieri

The velocity of a sound wave traveling through air at a temperature of 18°C (64.4°F) is 343m/s.

Explanation :

At normal atmosphere and pressure, the velocity of sound wave at increase in temperature is as follows

$\mathrm{V}=331 \mathrm{m} / \mathrm{s}+(0.6 \mathrm{m} / \mathrm{s} / \mathrm{c})^{*} \mathrm{T}$

where T is the temperature in degrees Celsius.

Using this equation, calculate the velocity of a sound wave at 20 degrees Celsius , from the following equations,

$\mathrm{V}=331 \mathrm{m} / \mathrm{s}+(0.6 \mathrm{m} / \mathrm{s} / \mathrm{c})^{*} \mathrm{T}$

$\mathrm{v}=331+(0.6)^{*} 20$

$\mathrm{v}=331+12$

V = 343 m/s

Answer from: Quest

An atom (ours, not carroll's) consists of a positively charged nucleus, surrounded by one or more negatively charged particles called electrons. the positive charges equal the negative charges, so the atom has no overall charge; it is electrically neutral. most of an atom's mass is in its nucleus; the mass of an electron is only 1/1836 the mass of the lightest nucleus, that of hydrogen. although the nucleus is heavy, it is quite small compared with the overall size of an atom. the radius of a typical atom is around 0.1 to 0.25 nanometres (nm), whereas the radius of a nucleus is about 10-6 nm. * if an atom were enlarged to the size of the earth, its nucleus would be only 200 feet in diameter and could easily rest inside a small football stadium.read more on -

Answer from: Quest

It won't lose or gain electrons if it's a covalent bond it shares the electrons with another atom or atoms. if it is an ionic bond it will lose the 3 electrons on the outer shell and become a positively charged ion. credit goes to @sunshinebaby of answers.yahoo.com.

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