0.0034L
Explanation:
Given parameters:
Number of molecules of oxygen gas = 9.23 x 10¹⁹molecules
Unknown:
Volume of oxygen = ?
Solution:
Assuming the gas is at standard temperature and pressure conditions;
Volume of gas = number of moles x 22.4
we need to find the number of moles of the oxygen gas;
number of moles = ![\frac{number of particles}{6.02 x 10[tex]^{23}](https://tex.z-dn.net/?f=%5Cfrac%7Bnumber%20of%20particles%7D%7B6.02%20x%2010%5Btex%5D%5E%7B23%7D)
}[/tex]
Number of moles = ![\frac{9.23 x [tex]10^{19}](https://tex.z-dn.net/?f=%5Cfrac%7B9.23%20x%20%5Btex%5D10%5E%7B19%7D)
}{6.02 x 10
}[/tex]
Number of moles = 1.53 x 10⁻⁴moles
Volume of gas = 1.53 x 10⁻⁴ x 22.4 = 0.0034L
learn more:
STP brainly.com/question/12684384
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<span>The magnitude of an object's average velocity is equal to its
average speed during the same period of time, when the distance
it covers is equal to its displacement during that time.
This happens when the object travels in a straight line.</span>
Explanation:
As you can see in the picture, we want the swimmer to go on a straight line, so the speed of the water must be equal to the speed of the swimmer along the x-axis. We also know the value of v, so we can calculate the of the cosine of the angle (alpha) between Vx and V. Thanks to the fundamental relation of gioniometry (cos^2(x) + sin^2(x) = 1) we can find the sine of alpha and calculate Vy. With Vy we can calculate the time that the swimmer will use for reaching the dock: s = Vy * t => t = s/(Vy).
I'll let you do all the calculations, you just have to plug in values.
Answer:
Explanation:
given data:
density of water \rho = 1 gm/cm^3 = 1000 kg/m^3
height of water = 20 cm =0.2 m
Pressure p = 1.01300*10^5 Pa
pressure at bottom
= 1.01300*10^5 - 1000*0.2*9.8
= 99340 Pa
h_[fluid} = 0.307m
The answer is <span>B. by increasing its mass. Hope it help!</span>
