Answer:
<h3>The answer is 2.71 g/mL</h3>
Explanation:
The density of a substance can be found by using the formula
![density = \frac{mass}{volume} \\](https://tex.z-dn.net/?f=density%20%3D%20%20%5Cfrac%7Bmass%7D%7Bvolume%7D%20%5C%5C)
From the question
mass = 244 g
volume = 90 mL
So we have
![density = \frac{244}{90} = \frac{122}{45} \\ = 2.71111111...](https://tex.z-dn.net/?f=density%20%3D%20%20%5Cfrac%7B244%7D%7B90%7D%20%3D%20%20%5Cfrac%7B122%7D%7B45%7D%20%20%20%5C%5C%20%20%3D%202.71111111...)
We have the final answer as
<h3>2.71 g/mL</h3>
Hope this helps you
Answer:
The index of refraction of the liquid is n = 1.33 equivalent to that of water
Explanation:
Solution:-
- The index of refraction of light in a medium ( n ) determines the degree of "bending" of light in that medium.
- The index of refraction is material property and proportional to density of the material.
- The denser the material the slower the light will move through associated with considerable diffraction angles.
- The lighter the material the faster the light pass through the material without being diffracted as much.
- So, in the other words index of refraction can be expressed as how fast or slow light passes through a medium.
- The reference of comparison of how fast or slow the light is the value of c = 3.0*10^8 m/s i.e speed of light in vacuum or also assumed to be the case for air.
- so we can mathematically express the index of refraction as a ratio of light speed in the material specified and speed of light.
- The light passes through a liquid with speed v = 2.25*10^8 m/s :
![n = c / v\\\\n = \frac{ 3*10^8 }{2.25*10^8} \\\\n = 1.33](https://tex.z-dn.net/?f=n%20%3D%20c%20%2F%20v%5C%5C%5C%5Cn%20%3D%20%5Cfrac%7B%203%2A10%5E8%20%7D%7B2.25%2A10%5E8%7D%20%5C%5C%5C%5Cn%20%3D%201.33)
- The index of refraction of the liquid is n = 1.33 equivalent to that of water.
Answer:
The barometer is supporting 75 cm of Hg due to atmospheric pressure.
Since the manometer is open to air pressure, the gas pressure is supporting the air pressure plus the 30 cm of Hg.
So the "absolute" gas pressure is 75 + 30 = 105 cm of Hg.
The word used for electricity at rest is called electrostatic
Answer:A i think or D but its not c or b
Explanation: