FIRST ANSWER IS BRAINIEST TAKE YOUR TIME I NEED RIGHT ANSWERS FIRST ANSWER IS BRAINIEST ANSWER TAKE YOUR TIME NEED RIGHT ANSWER
2 answers:
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Explanation:
Given that,
The density of water is 1 g/cm³
The density of ethanol is 0.8 g/cm³
We need to find the volume of the ethanol that has the same mass as 100 cm³ of water.
Density=mass/volume
For water,
For ethanol,
Hence, 125 cm³ of ethanol has the same mass as 100 cm³ of water.
Answer:
a
b
Explanation:
From the question we are told that
The pressure of the manometer when there is no gas flow is
The level of mercury is
The drop in the mercury level at the visible arm is
Generally when there is no gas flow the pressure of the manometer is equal to the gauge pressure which is mathematically represented as
Here is the density of mercury with value
and is the difference in the level of gas in arm one and two
So
Generally the height of the mercury at the arm connected to the pipe is mathematically represented as
=>
Generally from manometry principle we have that
Here is the pressure of the gas
converting to psig
The frequency, the speed and the wavelength of a wave are related by the following equation:
(1)
where
f is the frequency
is the wavelength
v is the wave speed
The speed of the wave does depend only on the properties of the medium, so since the wave is still traveling in air, the medium has not changed and therefore the speed remains the same. We see instead from eq.(1) that the frequency is inversely proportional to the wavelength, so if the wavelength is decreased by half, we see that the frequency will double.
where
f is the frequency
v is the wave speed
The speed of the wave does depend only on the properties of the medium, so since the wave is still traveling in air, the medium has not changed and therefore the speed remains the same. We see instead from eq.(1) that the frequency is inversely proportional to the wavelength, so if the wavelength is decreased by half, we see that the frequency will double.