Answer:
The answer to this is
6600 Hz to 19,800 Hz
Explanation:
The shape of the human ear is analogous to a closed ended pipe hence
we have λ = 4L or wavelength = 4 * length of the child ear
The frequency c/λ where c = speed of sound = 343 m/s
hence the child's audible range is multiples of 343/(4*0.13) =6600Hz
or 13200 Hz or 19,800 Hz
The generally quoted range of human hearing is 20 Hz to 20 kHz
Answer:
Answer is 257°C
Explanation:
Given
frequency = 628 Hz
wavelength = 0.49 m
speed of sound at 0°C = 325 m/s
Find
1.speed of sound at t °C=?
2.temperature = ?
Formula
speed of sound at t °C = speed of sound at 0°C [1+t/273]
Solution
1. speed of sound at t °C = f*∧
= 628*0.49
=307.7m/s
2.speed of sound at t °C = speed of sound at 0°C [1+t/273]
307.7 m/s = 325 m/s [1+ t/ 273]
307.7/325 = 1+t/273
0.94 = 1+t/273
multiplying 273 on both sides
(0.94)(273) = 1+t/273 (273)
258 = 1+ t
258 - 1 = t
257°C = t
Answer:
One degree unit on the Celcius scale is equivalent to one degree unit on the kelvin scale. The only difference between these two scales is the zero point. The zero point on the Celcius scale was defined as the freezing point of water, which means that there are higher and lower temperatures around it.
<span>The density of the energy that is transported under the waves under the ocean surface is about five times higher compared to the wind energy 20 meter (about 65 feet) above. In other words, the amount of energy in a single wave is very high. However it turns out that when they tried to make the high power of the waves to power things in a house it only made it past the first few stages there were very few that made it to some stages. This started taking place in around 2001. hope this helped if not let me know and i could explain more:)
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Answer:
10 kg
Explanation:
The mass of an object does not change even if the amount of gravtiy changes.