Answer:
It creates airflow in the engine
Explanation:
Harmonic excitation refers to a sinusoidal external force of a certain frequency applied to a system. ... Resonance occurs when the external excitation has the same frequency as the natural frequency of the system. It leads to large displacements and can cause a system to exceed its elastic range and fail structurally.
Answer:
Fcte10 < Fcte01 = Fcte0 < Fctm11 < Fcte21 = Fctm21 < Fcte12 = Fctm12 < Fcte22
Explanation:
Assuming a = 2b
Attached below is the required steps to the solution
The cutoff frequencies for the first ten modes of a rectangular waveguide listed in ascending order is :
Fcte10 < Fcte01 = Fcte0 < Fctm11 < Fcte21 = Fctm21 < Fcte12 = Fctm12 < Fcte22
Answer:
a) heat gain per unit tube length = 
b) heat gain per unit tube length = 
Explanation:
Assumptions:
- Constant properties
- Steady state conditions
- Negligible effect of radiation
- Negligible constant resistance between tube and insulation
- one dimensional radial conduction
a) What is the heat gain per unit tube length

Therefore 








heat gain per unit tube length = 
b) What is the heat gain per unit length if a 10-mm-thick layer of calcium silicate insulation (k_ins = 0.050 W/m.K) is applied to the tube

and
are the same, but
changes.
Therefore:


The total resistance 
heat gain per unit tube length = 