The best answer among the choices given that describes compression would be "<span>region of high pressure in a medium caused by a passing wave." The concepts of air compression is widely used in the industries such as vehicle tires, balloons, and other inflatable materials requiring high air pressure.</span>
Answer:
Density, ![d=0.82\ g/cm^3](https://tex.z-dn.net/?f=d%3D0.82%5C%20g%2Fcm%5E3)
Explanation:
It is given that,
Mass of an unknown liquid, m = 20.5 g
The volume of unknown liquid is 25 mL
We need to find the volume of the brass object. Mass per unit volume of an object is called its density.
We know that, 1 mL = 1 cm³
So, 25 mL = 25 cm³
![d=\dfrac{m}{V}](https://tex.z-dn.net/?f=d%3D%5Cdfrac%7Bm%7D%7BV%7D)
Putting the values, we get :
![d=\dfrac{20.5\ g}{25\ cm^3}\\\\d=0.82\ g/cm^3](https://tex.z-dn.net/?f=d%3D%5Cdfrac%7B20.5%5C%20g%7D%7B25%5C%20cm%5E3%7D%5C%5C%5C%5Cd%3D0.82%5C%20g%2Fcm%5E3)
So, the density of this substance is ![0.82\ g/cm^3](https://tex.z-dn.net/?f=0.82%5C%20g%2Fcm%5E3)
The basic function of the cell membrane is to protect the cell from its surroundings. Secondly, the cell membrane controls the movement of materials in and out of the cell (it is in this way that it is selectively permeable).
Mass and volume are two units used to measure objects. Mass- the amount of matter an object contains and volume- how much space it takes up