Fire is it that lives if it is fed, and dies if you give it a drink.
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Explanation:</u></h3>
Fire is very essential part of human life. It is used for cooking food and for other important activities. Without fire we cannot not survive. Something or the other should be heated before consumption and this can be achieved only with fir. It is also used in the darker places for viewing many things around us.
Thus, fire can survive if we give fuel or any wooden pieces and when water is poured on it it will turn off. Hence Fire is the one that survives when it is fed and dies when water is given as a drink to it.
I'm guessing that this is a problem to find the weight of a 90kg mass on a planet where the acceleration of gravity is 4 m/s^2. (Much less gravity than Earth, a little more than Mars.)
Just do the multiplication, and you get
360 Newtons.
Answer:
![Q = 169 BTU](https://tex.z-dn.net/?f=Q%20%3D%20169%20BTU)
Explanation:
As we know that volume is given as
![V = 12 Fl oz](https://tex.z-dn.net/?f=V%20%3D%2012%20Fl%20oz)
so it is given in liter as
![V = 12 fl oz = 0.355 Ltr](https://tex.z-dn.net/?f=V%20%3D%2012%20fl%20oz%20%3D%200.355%20Ltr)
now we have six pack of such volume
so total volume is given as
![V = 6\times 0.355 Ltr](https://tex.z-dn.net/?f=V%20%3D%206%5Ctimes%200.355%20Ltr)
![V = 2.13 ltr](https://tex.z-dn.net/?f=V%20%3D%202.13%20ltr)
so its mass is given as
![m = 2.13 kg](https://tex.z-dn.net/?f=m%20%3D%202.13%20kg)
now the change in temperature is given as
![\Delta T = 70 - 34 = 36 ^oF](https://tex.z-dn.net/?f=%5CDelta%20T%20%3D%2070%20-%2034%20%3D%2036%20%5EoF)
![\Delta T = 20^oC](https://tex.z-dn.net/?f=%5CDelta%20T%20%3D%2020%5EoC)
now the heat given to the liquid is given as
![Q = ms\Delta T](https://tex.z-dn.net/?f=Q%20%3D%20ms%5CDelta%20T)
![Q = 2.13(4186)(20)](https://tex.z-dn.net/?f=Q%20%3D%202.13%284186%29%2820%29)
![Q = 1.78 \times 10^5 J](https://tex.z-dn.net/?f=Q%20%3D%201.78%20%5Ctimes%2010%5E5%20J)
![Q = 169 BTU](https://tex.z-dn.net/?f=Q%20%3D%20169%20BTU)
X
Hot air rises = it's less dense than cold air = falls