A sample of gas occupies a volume of 320.0 mL at a pressure of 0.75 atm and a temperature of 27 ˚C. What will the volume be at a pressure of 1.25 atm and a temperature of 75 ˚C? (use GRESA method)

Abeam of electrons with of wavelength of 7.5 x 10-6 m is incident on a pair of narrow rectangular slits separated by 0.75 mm. the resulting interference pattern is projected onto a screen 10.0 m from the slits. what is the separation of the interference maxima in the resulting interference pattern?

Anybody wanna ? (picture included? )

Examine the equation. 23490th→23088ra+42he what kind of barrier would you need to block the radioactive particles from this reaction? a.a piece of paper b.a sheet of aluminum foil c. a two-inch block of lead d. a solid concrete block