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.
Answer: Reach and frequency
Explanation:
The media strategy is the planning and action that basically involve high reach in the exposure by using the media vehicle. It basically improve the overall conversation rate of customers.
The conversation rate is refers to the total percentage of the users which involve using the website and various applications.
This strategy also involve with high frequency that limited the list of the media vehicle.
The logical expressions are
- (X NOR Y ) OR Z ⇒
- (A NAND B) AND NOT C ⇒
<h3>How to determine the
logical expressions?</h3>
<u>Logical expression 1</u>
X and Y are linked by the NOR gate.
So, we have:
X NOR Y
The X NOR Y is linked to Z by the OR gate.
So, we have:
(X NOR Y) OR Z
Hence, the logical expression is (X NOR Y ) OR Z ⇒
<u>Logical expression 2</u>
A and B are linked by the NAND gate.
So, we have:
A NAND B
The A NAND B is linked to C by the AND gate.
So, we have:
(A NAND B) AND C
Hence, the logical expression is (A NAND B) AND NOT C ⇒
See attachment for the truth tables
Read more about truth tables at:
brainly.com/question/27989881
#SPJ1
Answer:
The Last option: Dyadic Communication AND Interpersonal Communication
is the correct one.
Explanation:
Communication can be defined as the process in which one may convey his thoughts or inquires about things.
There are many types of communications as listed above.
- Intrapersonal Communication
- Interpersonal Communication
- Dyadic Communication
- Small Group Communication
- Public Communication
- Mass Communication
- Organizational Communication
- Intercultural Communication.
Under all these, Interpersonal communication and Dyadic communication are the ones that are between two people.
Dyadic communication is the one in which two people relate to exchange thoughts and ideas face-to-face. It is sometimes referred as dialogic relation.
Interpersonal relation can be between two or more than two persons that may know each other. It is clearly specified in this communication that who listener and speaker are.
<h3>I hope it will help you!</h3>
