Answer:
447.58 J
Explanation:
The change in internal energy is the difference between the heat absorbed and the work done due to gas expansion. The following variables are given in the problem:
Change in volume = ΔV = 2.0 L
External pressure = P = 0.93 atm
Work done due to gas expansion = W = P*ΔV = 2*0.93 = 1.86 L-atm
We can convert the work done from L-atm to J by using the conversion unit given in the question: 1 L-atm = 101.3 J. Thus:
Work done = 1.86*101.3 = 188.418 J
Change in Internal energy (ΔU) = heat absorbed (Q) - work done (W)
The heat absorbed is equivalent to 636 J. thus, the internal energy is:
ΔU = 636 - 188.418 = 447.58 J
A scientific theory is a principle that can be falsified. The theory has to make strong statements about evidence. If the statements aren't strong, then the theory fits any evidence, and is unfalsifiable.
Answer: 2
Bc when you subtract 12 from 14 you get 2
Answers (Based off of my understanding
1.) False, slowing down is decelerating, not accelerating.
2.) True, acceleration is the change in the rate of DISTANCE over time.
3.) True, even though an object is moving, it’s rate of movement is not changing, therefore it is not accelerating.
4.) False, if the plane rose 100mph in 2 hours, 2 / 100 = 50 mph.
5 & 6) Sorry man, can’t see the graphs, if you show them later though I can help you.