Select the correct answer from each drop-down menu. Which component of a computer is its input device and what role does it play in a document?

The
(A)is an input device of a computer that helps (B)in
in a document.

(A) speakers
keyboard
documents

(B) entering data
Reviewing data
Publishing data

Air initially at 0.75 bar, 1000 k, and occupying a volume of 0.12 m^3 undergoes two processes. process 1-2: the air is compressed isothermally until the volume is halved. process 2-3: the air undergoes a constant pressure process until the volume is halved again. assume ideal gas behavior. a) determine the mass of the air, in kg. b) the work and the heat transfer for each of the two processes, in kj. (100 kj = 1 bar . m^3)