Answer:
Momentum Packet Answer KEY - Science Online
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Answer:
3.5 seconds of flight time; 13.9 m from the base of the cliff
Explanation:
Answer:
The inside Pressure of the tank is ![4499.12 lb/ft^{2}](https://tex.z-dn.net/?f=4499.12%20lb%2Fft%5E%7B2%7D)
Solution:
As per the question:
Volume of tank, ![V = 0.25 ft^{3}](https://tex.z-dn.net/?f=V%20%3D%200.25%20ft%5E%7B3%7D)
The capacity of tank, ![V' = 50ft^{3}](https://tex.z-dn.net/?f=V%27%20%3D%2050ft%5E%7B3%7D)
Temperature, T' =
= 299.8 K
Temperature, T =
= 288.2 K
Now, from the eqn:
PV = nRT (1)
Volume of the gas in the container is constant.
V = V'
Similarly,
P'V' = n'RT' (2)
Also,
The amount of gas is double of the first case in the cylinder then:
n' = 2n
![\]frac{n'}{n} = 2](https://tex.z-dn.net/?f=%5C%5Dfrac%7Bn%27%7D%7Bn%7D%20%3D%202)
where
n and n' are the no. of moles
Now, from eqn (1) and (2):
![\frac{PV}{P'V'} = \frac{nRT}{n'RT'}](https://tex.z-dn.net/?f=%5Cfrac%7BPV%7D%7BP%27V%27%7D%20%3D%20%5Cfrac%7BnRT%7D%7Bn%27RT%27%7D)
![P' = 2P\frac{T'}{T} = 2\times 2116\times \frac{299.8}{288.2} = 4499.12 lb/ft^{2}](https://tex.z-dn.net/?f=P%27%20%3D%202P%5Cfrac%7BT%27%7D%7BT%7D%20%3D%202%5Ctimes%202116%5Ctimes%20%5Cfrac%7B299.8%7D%7B288.2%7D%20%3D%204499.12%20lb%2Fft%5E%7B2%7D)
The purpose of an experiment is to LEARN the EFFECT of something.
The way you do that is to CHANGE the thing and see what happens.
You can change as many things as you want to. But If you change
TWO things and observe the result, then you don't know which one
of them caused the effect you see.
Or maybe BOTH of them working together caused it. You don't know.
So your experiment is not really much good. You need to do it again.