Acylinder containing some gas a is fitted with an idealized piston..gas a is at 1.2 atm,10 l and at 432 k. what external pressure is required to compress this gas irreversibly to a final volume of 3.2 l.
a) .12 atm
b).33 atm
c).45 atm
d).52 arm.

Atrain departs from its station at a constant acceleration of 5 m/s. what is the speed of the train at the end of 20s?

Which is the best predictor of the radioactive nature of an isotope? o the proton-to-electron ratio the neutron-to-proton ratio o the neutron-to-electron ratio the electron-to-proton ratio

The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.939 w/m^2 . the wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. how much total electromagnetic energy falls on the area during 1.0 minute?