Answer: Friction is a force that resists relative motion between two surfaces in contact. Depending on the application, friction may be desirable or undesirable.
Answer:
39.1 °C
Explanation:
Recall the equation for specific heat:

Where q is the heat, m is the mass, c is the specific heat of the substance (in this case water), and delta T is the change in temperature.
You should know that the specific heat of water is 1 cal/g/C.
Using the information in the question:

The final temperature is about 39.1 °C.
Answer:Ammonia is a compound that contains one nitrogen atom and three hydrogen atoms. Ordinarily having a characteristic of a pungent and gaseous compound.
Elemet: Hydrogen, Symbol: H, # of Atoms:5
Elemet:Nitrogen, Symbol: N, # of Atoms:1
Elemet:Oxygen, Symbol: O, #of Atoms:1
Explanation:
the answer is The average kinetic energy of the surrounding air particles increases.
hope it helps