Answer:
Answer in explanation
Explanation:
Gases are expected to behave as ideal gases at particular temperature and pressure know as the S.T.P.
At a temperature of 273k and a pressure of 1atm, it is expected that a mole of a gas will occupy a volume of 22.4L. Now, a particular student measured the pressure of a gas at 425K, it is expected that the pressure is different from the one that is supposed to be observed at STP and thus , the measures quite differently
Which best depicts wind erosion?
B.
rolling marble
Answer:
D. water undergoing electrolysis
<span>The water reaches its boiling point and turns into water vapor. This process is a physical change. The change is substance status. And the physical change will not destroy the molecular structure. So the molecular structure will not change.</span>
Lets see:-
We have our formula for potential energy, which we are trying to solve for,
PE = mgh or potential energy = mass * gravity * height
So we know that PE all depends on these.
Height : 30 meters
Mass : 25 kg
Gravity (which is always constant) : 9.8 m/s/s
Now add into formula.
PE = 25*30*9.8
PE = 7350 Joules
Answer: PE = 7350 Joules
Now calculate speed:-
7,350 joules/12.5 kg = speed-squared
<span> 588 m²/s² = speed-squared
</span> about 24.248 m/s