Answer:
B
Explanation:
When rubbing two sticks together it causes friction witch at fast enough friction rate produces heat energy
magnitude of the net force = mass x acceleraton
= 22 x 2.3
=50.6 N
<h3><u>Answer;</u></h3>
They are anions.
<h3><u>Explanation</u>;</h3>
- Polyatomic ions are the ions that contain 2 or more different atoms that are covalently bonded to each other.
- Examples include; Nitrate : NO₃⁻, Sulfate : SO₄²⁻,Hydroxide : OH⁻, and Phosphate : PO₄³⁻, etc.
- Polyatomic ions are tightly bound group of atoms that has a positive or negative charge and behaves as a unit.
The internal energy of an ideal gas is given by:
where
n is the number of moles
R is the gas constant
T is the absolute temperature of the gas
k=3 for monoatomic gases, k=5 for diatomic gases
In this problem, we have n=3.0 mol of a diatomic gas (k=5) at T=288 K. Substituting these numbers into the equation, we find the internal energy of the gas:
Answer:
120,000seconds
Explanation:
400 minutes x 5= 2000minutes (2000minutes x 60)seconds =120,000seconds.
btw :
stay safe! :3