From gas equations
PV/T = Constant
Then
P1V1/T1 = P2V2/T2, but V1 = V2
Therefore,
P1/T1 = P2/T2
P2 = (P1T2)/T1
P1 = 40 psi
T1 = 60°F = 288.706 K
T2 = 90°F = 305.372 K
Substituting;
P2 = (40*305.372)/288.706 = 42.31 psi
Then, gauge pressure would read 42.31 psi.
there it is fella tried on ma own consciousness
Answer:
Approximately .
Explanation:
Let denote the distance between the hikers and the mountain.
The sound wave from the hikers need to travel a distance of to reach the mountain. The echo comes back at the hikers almost immediately after that and would need to travel the same distance, , to reach the hikers.
Hence, the between the shout and the echo is the time it takes for sound to travel a distance of - twice the distance between the hikers and the mountain.
Distance that sound travels in :
.
The distance between the hikers and the mountains would be:
.
After the initial push, the rock will keep moving forever at constant velocity (constant speed in a straight line)
Explanation:
We can answer this question by using Newton's first law of motion:
"An object at rest (or in motion at constant velocity) will stay at rest (or will keep moving at constant velocity) unless acted upon unbalanced forces" (Law of inertia)
In this problem, we have a rock in a place very far from any force that can act on it. This means that there are no unbalanced force acting on it, so the rock will keep its state of motion forever.
In this situation, the rock is initially thrown by the astronaut. After the initial push, which accelerates the rock up to a certain velocity, there will be no more forces acting on the rock. This means that the rock will continue moving at a constant velocity forever, so at a constant speed in a straight line.
Learn more about Newton laws of motion:
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#LearnwithBrainly
There are several information's that are already given in the question. Based on those information's the answer can be easily deduced.
<span>Length: 25 cm
Width: 10cm
Height: 4 cm
Mass: 15g
Volume of the wood = 25 * 10 * 4
= 1000 cubic cm
Now
Density of the wood = Mass / Volume
= 15/1000
= 0.015 gm/cm^3
I hope that the procedure is clear enough for you to understand and this is the answer that has come to your desired help.</span>