So, in my class, we are making a homemade gas mask. we have to find any type of gas that we could find easily to test the mask. any ideas?

Various

Explanation:

Helium

Carbon dioxide

Nitrogen

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

hope this : )

water at room temperature is flowing through a pipe with pressure taps located 10 ft apart along one section of the pipe, which are connected to a mercury (s=13.6) manometer.