Answer:
τ = 0.25 lbf/in²
Explanation:
given that the oil viscosity, μ = 2.415 lb/ft-s
gap between plates = 1/4 inches = 1/4*12 = 1/48 ft
recall from newtons law of viscosity;
shear stress τ = μ du/dy =
τ = (2.415 lb/ft-s) (10 ft/s)/(1/48) ft
τ = 1159.2 lb/ft-s²
we know that, 1 slug = 32.174 lb
lb = 1/32.174 slug
∴ τ = 1159.2/32.174 slug/ft-s² = 36 slug/ft-s²
τ = 36 slug/ft-s²
multiply both the numerator and denominator by ft, this gives
τ = 36 slug-ft/ft²-s²
τ = 36 lbf/ft² where 1 slug-ft/s² = 1lbf
since 1 ft = 12 inch = 1 ft² = 12² in² = 144 in²
∴ τ = 36/144 lbf /in² = 0.25 lbf/in²
τ = 0.25 lbf/in²
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:
ABS
Explanation:
an Anti Lock Breaking system will not lock up your breaks even when used in a tight situation. This helps inexperienced drivers with no breaking technique break proprly.
Explanation:
The wind is an actual form of solar energy. winds are caused by the heating of the atmosphere by the sun, the rotation of the earth, and the earth's surface irregularities. The wind is capture in a wind turbine which provides a renewable energy source, the wind makes the rotor spin, as the rotor spins the movement of the blades drives a generator that creates energy, also known as wind power. The average wind efficiency of turbines is between 35-45%.
Advantages of wind power
- Wind power is cost-effective
- wind creates jobs
- wind enables US industry growth and US competitiveness
-it's a clean fuel source
