## Db Sentence Examples

- Thus it has annihilators of the forms a0
**db**- 0 +al d 1+a2d 22+... - Nor diminishes the If we define as the " dispersion " in a particular part of the spectrum the ratio of the angular interval
**dB**to the corresponding increment of wave-length dX, we may express it by a very simple formula. - If the ray suffers one internal reflection at D, then it is readily seen that, if
**DB**be the path of the reflected ray, the angle ADB equals 2r, i.e. - (I) Over the jet surface 4'=m, q=Q, u=-e rr,lm= -berslc, ch SZ=cos n0= e>rsle+I, shS2 =i sin ins =tan ds 2n (3) e2 =tan nO, - c
**dB**sin 2,10' For a jet impinging normally on an infinite plane, as in fig. - U -b' Along a jet surface, q=Q, and ch S2= cos 0 =cos a-i sin2a(a-a')/(u-b), (5) if 0 =-a at the source x of the jet xB, where u = co; and supposing 0=0,13 at the end of the streams where u =j, j', u-b i sin 2 a u - j cos 0-cos /3 i a -a cos a sin a -cos 0' aa' - 2 (cos a -cos (3) (cos a-cos 0)' u-j' 1 2 cos 0-cos, (6) a -a' - 2 S i n a (cos a -cos (3') (cos a -cos B)' and 4' being constant along a stream line d4 - dw ds _d8 d4 _ dw du du du' d- -dud0' 7rQ ds_ it ds (cos a-cos /3) (cos a -cos (3') sin 0 m+m'
**dB**c d0 - (cos a-cos B) (cos 0-cos /3) (cos 0 -cos /3')' _ sin 0 cos a-cos 13 sin 0 - cos a-cos B + cos 0-cos (3' cos 0-cos 13 cos a -cos $ sin 6 cos (3-cos /3' cos 0-cos 0" giving the intrinsic equation of the surface of a jet, with proper attention to the sign. - F" =S 0 0 - (n+1)cp+bp+B„ dG"/dO (p const) =0" = dJ"/
**dB**(v const).. - 1) be a trapezium, the sides CA and
**DB**being parallel. - Draw any straight line at right angles to CA and
**DB**(produced if necessary), meeting them in M and N. - Along CA and
**DB**, on the same side of MN, take MA' = CA, NB' =**DB**; and join A'B'. - (33) But the condition of unchanged form requires that the matter shall twist through (
**dB**/dx)dx while it is travelling over dx, i.e. - If the gradient is not uniform, its value may be denoted by
**dB**/dx. - The heat per second gained by conduction by an element dx of the bar, of conductivity k and cross section q, at a point where the gradient is
**dB**/dx, may be written gk(d 2 6/dx 2)dx. - The rods BC and
**DB**carry two small rods EF, GF jointed at F; at this joint there is a pin which slides in a slot on the rod BH, which is normal to the mirror X. - 112) carries a larger barrel AE and a smaller barrel
**DB**, rotating as one piece with the angular velocity fti in the direction D AE. - If the respective lengths are made in the proportions AC: CD:
**DB**= I: 1.3: o4 the middle point P of**DB**will describe an approximately straight line parallel to AC within limits of length about equal to AC. C. N. - (I) Aboth
**db**Rabbi Nathan, an expansion of IV. - Broad, behind which are developed the socalled murd-
**db**, or "dead waters," stagnant pools and swamps characteristic of this coast, and a main cause of its unhealthiness. - The resistance to slipping of a flat belt on a pulley may be obtained by considering the equilibrium of a small arc of the pulley surface subtending an angle
**dB**at the centre, and having tensions T and T+dT at its extremities.