Answer:
a) D = 4.88 * 10^(-14) m^2 / s
b) <em>t </em>= 1.1 hr
Solution:
a) Magnesium in Aluminum diffusion:
D = Do * exp(-Qd / RT)
= (1.2 * 10^(-4) m^2 / s) * exp ( - 130,000 / 8.31 * 723.15)
= 4.88 * 10^(-14) m^2 / s
D = 4.88 * 10^(-14) m^2 / s
b) The composition remains same at say the distance Xo:
(Cx - Co) / (Cs - Co) = Constant
Xo^2 / D_{550} * <em>t </em>= Xo^2 / D_{450} * 15
D_{550} * <em>t </em>= D_{450} * 15
(1.2 * 10^(-4) m^2 / s) * exp ( - 130,000 / 8.31 * 723.15) * <em>t</em>
(4.88 * 10^(-14) m^2 / s) * 15
by, solving for <em>t </em>we get:
<em>t </em>= 1.1 hr
So, the time required is 1.1 hr.
The configuration procedure moves into its final stage once the DHCP server has received the DHCPREQUEST message from the client. An acknowledgement packet, or DHCPACK, is sent to the client at this step.
<h3>What final step of the DHCP discovery process?</h3>
After selecting the proper IP address, the server sends the client an OFFER packet, and the client replies with a REQUEST packet. The process ends with the server sending an ACK packet to confirm that the client has received an IP address.
Therefore, DHCP may dynamically issue IP addresses to any Internet-connected device, node, or client computer.
Learn more about DHCP here:
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Answer:
Option B (Static NAT) would be the correct choice.
Explanation:
- Static NAT seems to be a method of NAT methodology used to navigate as well as monitor internet usage from some kind of specific public IP address to something like a private IP address.
- Everything always allows the provision of web access to technology, repositories including network equipment inside a protected LAN with an unauthorized IP address.
Some other decisions made aren't relevant to the situation in question. So the above alternative is indeed the right one.
The following options helps keep people from slipping on floors
A) Have the proper absorbents in an easy-to-find place to quickly put on spills : So that accidental little spills can be cleaned right away.
C) Wear slip-resistant footwear : It is a precautionary step to follow, no matter where we go.
D) Mark a slippery area with an easy-to-use tent sign that says " Caution, Slippery floor" : This allows people to be aware of the wet area and cross it cautiously.
Leaving oil and fluids to air dry thoroughly, takes a long time and there are chances that people step over it and slip.
So, the answer is
(B) Anytime oil or fluids are spilled on the floor, leave them to thoroughly air dry.
