The frequency and wavelength of the sound wave with the given time period and speed are 500Hz and 0.688m respectively.
Period is simply the time taken for a complete cycle of vibration to pass a given point. Frequency is expressed as;
f = 1/T
Where f is frequency and T is period of time.
Given that;
f = 1/0.002s
f = 500s⁻¹
f = 500Hz
Wavelength is simply the distance over which the shapes of waves are repeated. It is the spatial period of a periodic wave.
From the wavelength, frequency and speed relation,
λ = s ÷ f
Where λ is wavelength, s is speed and f is frequency.
Given that;
λ = s ÷ f
λ = 344m/s ÷ 500s⁻¹
λ = 0.688m
Therefore, the frequency and wavelength of the sound wave with the given time period and speed are 500Hz and 0.688m respectively.
Learn more about Speed, Frequency and Wavelength here: brainly.com/question/27120701
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Answer:
Given
Time (T) = 0.002 sec
Velocity(V) = 344 m/s
Frequency (f) = ?
Wavelength (w) = ?
Explanation:
We know that
Frequency (f) = 1/ t
= 1/ 0.002
= 500 hertz
Now
wavelength = V/f
= 344/500
= 0.688 m
Answer:
The correct answer is 0.47 m³
Explanation:
The formula for density (d) is
Mass (m) ÷ volume (v)
Hence
d = m ÷ v
The density of aluminium (as provided in the question) is 2700 kg/m³ and the mass of aluminium is 1280 kg, the volume is however unknown.
Thus, from the formula earlier
2700 = 1280 ÷ v
v = 1280 ÷ 2700
v = 0.47 m³
The volume of aluminium when the density is 2700 kg/m³ and the mass is 1280 kg is 0.47 m³
Answer:
volume = 0.47 .
Explanation:
Density:
We have that d = 2700 kg/ and that we have 1280 kg of Al.
V = 0.47
Answer:gravity
Explanation:
Answer:
2m/sec
Explanation:
that is how long it would take him.
The apparent brightness of a star depends on how bright it really IS, and also on its distance from Earth. Just like matches, flashlights, and fireflies, stars that are closer to us look brighter to us. (Think about the Sun.)