A 1000 gal vessel, containing air, is to be vacuum purged to a limiting oxygen concentration of 1 ppm. Determine the number of purge cycles required.

T = 75 F
Initial pressure 760 torr
max vacuum 20 mm Hg
Final pressure 1 atm
Purge gas nitrogen
Answer must be the number of purge cycles needed.

x+2 because it just doubles hon so the pattern can actually tell you the expression.

so for example,

if x=2 then 2+2 is 4

if x=4 then 4+4 is 8

and so on and so forth.

i really hope that this makes sense and you out in a way hon: )

answer:

explanation:

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answer:

in baseband transmission the whole bandwidth of the cable is utilized by a single signal. eg.Ethernet is using Basebands for LAN.

In the broadband transmission, multiple signals are sent on multiple frequencies simultaneously using a single channel. eg.Digital Subscriber Line (DSL)

B) Between two private individuals