An ideal gas with γ = 1.4 is subjected to the following cyclic process, whose starting point is characterized by p1 = 245 kPa, V1 = 2.19 L: 1. adiabatically expand until the pressure becomes p2 = 16.8 kPa, at which
point the volume has some value V2; 2. isobarically (=constant pressure) reduce the volume back to V1; 3.
isochorically (=constant volume) increase the pressure back to p1.
(a) What value does V2 have?
(b) Draw a p-V diagram for this cyclic process. Make sure you label all important parts of it.
(c) What is the net work done on the gas for the whole cyclic process?
(Careful! It’s on the gas, not by the gas.)

Often called simply "velocity," this is the velocity of an object at a particular moment in time.

In the future, people will only enjoy one sport: electrodisc. in this sport, you gain points when you cause metallic discs hovering on a field to exchange charge. you are an electrodisc player playing the popular four disc variant. the disks have charges of qa = −8.0 µc, qb = −2.0 µc, qc = +5.0 µc, and qd = +12.0 µc. (1) you bring two disks together and then separate them. you measure the resulting charge of these two disks and find that it is +5.0 µc per disk. which two disks did you bring together? (a) a and b (b) a and c (c)a and d (d)b and c(e) b and d (f) c and d. (2) you bring three disks together and then separate them. you measure the resulting charge of these three disks and find that it is +3.0 µc per disk. which three disks did you bring together? a, b, and c (a) a, b, and d (c) a, c, and d (d) b, c, and d. (3) given the resulting charge of each disk measured in (b) is +3.0 µc, how many electrons would you need to add to a disk of this charge to electrically neutralize it? electrons

If the specific heat of a metal is 0.850 j/g °c, what is its atomic weight?