Answer:
a)
, b)
, c) 1600
Explanation:
a) The Reynolds Number is modelled after the following formula:

Where:
- Fluid density.
- Dynamics viscosity.
- Diameter of the tube.
- Fluid speed.
The formula can be expanded as follows:


b) The Reynolds Number has this alternative form:

c) Since the diameter is the same than original tube, the Reynolds number is 1600.
Answer:
B
Explanation:
The fact that skip signals refracted from the ionosphere are elliptically polarized is a result of either vertically or horizontally polarized antennas may be used for transmission or reception.
Answer: hello some data related to your question is missing attached below is the missing data
answer:
T2 = 265°C
Explanation:
First step : calculate sum of vertical forces
∑ y = 0
Fmg - 2(0.5 Fst ) = 0
∴Fmg = ( 12 * 10^6 ) ( 2 * π/4 (0.01)^2 )
= 1884.96 N
Also determine the Compatibility equation in order to determine the change in Temperature
ΔT = 250°C
therefore Temperature at which average normal stress becomes 12.0 MPa
ΔT = T2 - T1
250°C = T2 - 15°C
T2 = 250 + 15 = 265°C
attached below is the detailed solution
Answer:
Answer explained below
Explanation:
The following is the nested if-else statement:
% if-based statement
if num < -2 || num > 4
f1(num)
else
if num <=2
if num >= 0
f2(num)
else
f3(num)
end
else
f4(num)
end
end
<u>NOTE:</u> the num is an integer variable that has been initialized and that there are functions f1, f2, f3 and f4.
The nested if-else statement can be replaced by switch statement as shown below:
switch num
case(0, 1, 2)
f2(num)
case(-2, -1)
f3(num)
case(3, 4)
f4(num)
otherwise
f1(num)
In this case, the switch based code is easier to write and understand because the cases are single valued or a few discrete values (not ranges of values)
Answer:
The natural angular frequency of the rod is 53.56 rad/sec
Explanation:
Since the beam is free at one end and fixed at the other hence the beam is a cantilevered beam as shown in the attached figure
We know that when a unit force is placed at the end of a cantilever the displacement of the free end is given by

Hence we can write

Comparing with the standard spring equation
we find the cantilever analogous to spring with 
Now the angular frequency of a spring is given by
where
'm' is the mass of the load
Thus applying values we get
