Answer:
values have been declared but not initialized nor allocated memory. So you are not allowed to use "values.length"
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:
1. -> B.
2. -> C
3. -> A
Explanation:
1. Antennas = help the router fetch and transmit a signal
2. Repeaters = help in increasing the range of signal
3. Adapters = help the device detect a wireless signal
Answer:
1. You can invoke or call a method from another program or method: TRUE
2. When methods must share data, you can pass the data into and return the data out of methods: TRUE
3. A method could be called using any numeric value as an argument, whether it is a variable, a named constant, or a literal constant: TRUE
Explanation:
Some examples of environmental technology is recycling.
