Given what we know, we can confirm that the letter V is often used to describe the typical shape of a mountain valley, while stream bank and stream bed described the side and bottom of a stream respectively.
<h3>What terms do we use to described streams?</h3>
As shown in the question, there are many ways to describe the different parts of a stream. The side of the stream is referred to as the bank of the stream, along its entire length, while the stream bed is a term used to describe the bottom.
Therefore, we can confirm that the letter V is often used to describe the typical shape of a mountain valley, while stream bank and stream bed described the side and bottom of a stream respectively.
To learn more about streams visit:
brainly.com/question/3477759?referrer=searchResults
The answer would be carbon
The solid sink because it has a higher density
Answer:
7.30523 m/s
Explanation:
t = Time taken
u = Initial velocity = 0
v = Final velocity
s = Displacement = 2.72 m
g = Acceleration due to gravity = 9.81 m/s² = a
Equation of motion
![v^2-u^2=2as\\\Rightarrow v=\sqrt{2as+u^2}\\\Rightarrow v=\sqrt{2\times 9.81\times 2.72+0^2}\\\Rightarrow v=7.30523\ m/s](https://tex.z-dn.net/?f=v%5E2-u%5E2%3D2as%5C%5C%5CRightarrow%20v%3D%5Csqrt%7B2as%2Bu%5E2%7D%5C%5C%5CRightarrow%20v%3D%5Csqrt%7B2%5Ctimes%209.81%5Ctimes%202.72%2B0%5E2%7D%5C%5C%5CRightarrow%20v%3D7.30523%5C%20m%2Fs)
The speed which a quarter would have reached before contact with the ground is 7.30523 m/s
The mercury density (at liquid state) is
![\rho = 13.5 g/cm^3=13500 kg/m^3](https://tex.z-dn.net/?f=%5Crho%20%3D%2013.5%20g%2Fcm%5E3%3D13500%20kg%2Fm%5E3)
And we know that the pressure at the bottom of a column of fluid is given by (Stevin's law)
![p=\rho g h](https://tex.z-dn.net/?f=p%3D%5Crho%20g%20h)
where
![\rho](https://tex.z-dn.net/?f=%5Crho)
is the liquid density
g is the gravitational acceleration
h is the height of the column of fluid
The pressure at the bottom of the beaker is
![p=26000 Pa](https://tex.z-dn.net/?f=p%3D26000%20Pa)
, therefore we can re-arrange the previous equation to get the height of the column of mercury