2.) In a cylinder of cross section 1 dm2, closed at one end, a tight-fitting piston encloses an air column of length 7 dm. We press the piston inwards until the force we are exerting on the piston reaches 400 N.
During the compression, the temperature of the gas does not change. The external air pressure is
105 Pa.
a) What
pressure
will we exert on the gas?
b) What will be the pressure of the gas then?
c) What will be the volume of the gas?​

If a spring has a k value of 100 newtons per meter and it is stretched 0.50 meters, what is the restoring force of the spring?

Click the game tab at the bottom of the simulation and select level 1. (there is no seesaw balance for this part of the activity.) balance the first equation, and click check to see if you got it right. if you can’t balance it in the first try, you can try again. work through the five equations for level 1. click continue to go on to level 2, and later level 3. each level is more difficult than the one before. keep trying until all the equations are balanced. in one or two sentences, describe how you did in the balancing game. in a few more sentences, explain one strategy you learned for balancing more complex equations.

The flame produced by the burner of a gas (propane) grill is a pale blue color when enough air mixes with the propane (c3h8) to burn it completely. for every gram of propane that flows through the burner, what volume of air is needed to burn it completely? assume that the temperature of the burner is 195.0°c, the pressure is 1.05 atm, and the mole fraction of o2 in air is 0.210.