The figure shows the output from a pressure monitor mounted at a point along the path taken by
a sound wave of a single frequency travelling at 346 m/s through air with a uniform density of
1.41 kg/m^3. The vertical axis scale is set by delta ps = 4.20 mPa. If the displacement function of
the wave is written as s(x, t) = s_m cos(kx - omega t), what are (a) s_m, (b) k, and (c) omega?
The air is then cooled so that its density is 1.55 kg/m^3 and the speed of a sound wave through it
is 320 m/s. The sound source again emits the sound wave at the same frequency and same
pressure amplitude. What now are (d) s_m, (e) k, and (f) omega?
Solution
A)
The displacement amplitude is calculated as follows:
Sm = dP*T/v*p*2*pi = [4.2x10-3][2.4*10-3] / [343][1.41][2][pi] = 3.32e-9 m
b)
the wavenumber is,
k = 2*pi/T*v = 2*pi/2.4*10^-3*343 = 7.63 rad/m
c)
angular frequency: w = 2*pi/T = 2*pi/2.4x10-3 = 2616.67 rad/s = 2.62e+3 rad/s
d)
The displacement amplitude is calculated as follows:
Sm = dP*T/v*p*2*pi = [4.2x10-3][2.4*10-3] / [320][1.55][2][pi] = 3.236e-9 m
(e)
the wavenumber is,
k = 2*pi/T*v\'
(f)
angular frequency: w = 2*pi/T = 2*pi/2.4x10-3 = 2616.67 rad/s = 2.62e+3 rad/s.
Mixin Classes in Odoo 17 How to Extend Models Using Mixin Classes
The following segment of DNA codes a protein. The uppercase letters r.pdf
1. The following segment of DNA codes a protein. The uppercase letters represent exons, the
lowercase letters introns. Draw the mature mRNA, tRNAs and translate the transcript into a
polypeptide.
5'TGATGATATTCCAgaaaagccggGATGAGCaatctaGCACATTTGTGATATACAGT-3'
Solution
Answer:-Since introns are removed before translation thus mature mRNa will be
5'ACUGUAUAUCACAAAUGUGCGCUCAUCGGAAUAUCAUCA-3'
Protein formed after translation will be.
Thr, val, Tyr, His, Lys, cys, ala, leu, isol, gly, iso, ser, ser.
