green liquid becoming a red liquid
Answer:
Explanation:
![\dot{m_1}= 0.5kg/s](https://tex.z-dn.net/?f=%5Cdot%7Bm_1%7D%3D%200.5kg%2Fs)
from steam tables , at 250 kPa, and at
T₁ = 80⁰C ⇒ h₁ = 335.02 kJ/kg
T₂ = 20⁰C⇒ h₂ = 83.915 kJ/kg
T₃ = 42⁰C ⇒ h₃ = 175.90 kJ/kg
we know
![\dot{m_{in}}=\dot{m_{out}}](https://tex.z-dn.net/?f=%5Cdot%7Bm_%7Bin%7D%7D%3D%5Cdot%7Bm_%7Bout%7D%7D)
![\dot{m_{1}}+\dot{m_{2}}=\dot{m_{3}}](https://tex.z-dn.net/?f=%5Cdot%7Bm_%7B1%7D%7D%2B%5Cdot%7Bm_%7B2%7D%7D%3D%5Cdot%7Bm_%7B3%7D%7D)
according to energy balance equation
![\dot{m_{in}}h_{in}=\dot{m_{out}}h_{out}](https://tex.z-dn.net/?f=%5Cdot%7Bm_%7Bin%7D%7Dh_%7Bin%7D%3D%5Cdot%7Bm_%7Bout%7D%7Dh_%7Bout%7D)
![\dot{m_{1}}h_{1}+\dot{m_{2}}h_{2}=\dot{m_{3}}h_{3}](https://tex.z-dn.net/?f=%5Cdot%7Bm_%7B1%7D%7Dh_%7B1%7D%2B%5Cdot%7Bm_%7B2%7D%7Dh_%7B2%7D%3D%5Cdot%7Bm_%7B3%7D%7Dh_%7B3%7D)
It's a combination of all those things. probably because we are taught from an early age to write in an academic fashion, giving balanced arguments and a conclusion. When speaking from the heart, there is no opposing argument nor is there a conclusion, just emotion.
Explanation:
Given that,
The initial velocity of a skater is, u = 5 m/s
She slows to a velocity of 2 m/s over a distance of 20 m.
We can find the acceleration of skater. It is equal to the rate of change of velocity. So, it can be calculated using third equation of motion as follows :
![v^2-u^2=2as](https://tex.z-dn.net/?f=v%5E2-u%5E2%3D2as)
a = acceleration
![a=\dfrac{v^2-u^2}{2s}\\\\a=\dfrac{(2)^2-(5)^2}{2\times 20}\\\\a=-0.525\ m/s^2](https://tex.z-dn.net/?f=a%3D%5Cdfrac%7Bv%5E2-u%5E2%7D%7B2s%7D%5C%5C%5C%5Ca%3D%5Cdfrac%7B%282%29%5E2-%285%29%5E2%7D%7B2%5Ctimes%2020%7D%5C%5C%5C%5Ca%3D-0.525%5C%20m%2Fs%5E2)
So, her acceleration is
and she is deaccelerating. Also, her initial velocity is given i.e. 5 m/s.
<span>The earth moves, which is unstoppable and if the earth moves the telescope won't be able to see it clearly because the telescope needs to be able to move at the same pace as earth to keep up to the objects</span>