Answer:
Explanation:
density = mass / volume = 85 / 92 = 0.92 g/cm3
I think about 67 students because if you divide 570 by the amount each person needs you get 67.0588235294 so you have to round down
<u>Answer: </u>The correct answer is Option B.
<u>Explanation:</u>
First law of thermodynamics states that the energy can neither be destroyed not be formed but it can only be transformed from one form to another.
Here, the internal energy of the system is being transformed to the heat energy and the work done by the system. The equation used to represent first law of thermodynamic is:

where,
represents the internal energy of the system.
Q = heat released or absorbed by the system.
w = work done by or on the system.
Hence, the correct answer is Option B.
The red semicircle shown in the weather chart represents warm front.
Explanation:im not really sure about this one but i think it is either c or b
ANSWER:C im pretty sure.sorry if wrong