your answer is <u>D</u><u>.</u><u> </u>physical change, because a new substance is not formed.
Answer:
The temperature of the boiler is approximately 147.1 °C
Explanation:
A Carnot engine is an ideal engine that has the highest efficiency among all the engines because the second law of thermodynamics.That efficiency 
is:
with 
the temperature of the hot reservoir (the boiler temperature) and 
the temperature of the cold reservoir (the steam temperature). Solving for :
Answer:
stars,auroras,a neon sign
Explanation:
just did it
Because you are never 100% precise during the work, so it's best and most accurate answer is always the average of more trials. basically the more you do, the more accurate the answer shall be
Answer:
Hi there!
Your answer is:
D. Gases
Explanation:
Stars are mass balls of hydrogen and helium! Both gases
Hope this helps
