# P-r Sentence Examples

Inasmuch as the debenture stocks and preference shares would have to be redeemed in 1911 at premiums ranging from 3 to 5 per cent., the state would have to pay the company £253,000 in excess of the total of the outstanding securities in order to enable the ordinary shares to receive par, and in the council's view this payment would diminish the p robability of the Post Office being able to afford a substantial reduction in the telephone charges.

Let p be the mean pressure in pounds per square inch, calculated from an indicator diagram taken from a particular cylinder when the speed of the crank-shaft is n revolutions per second.

Assuming that the mean pressure in the other cylinder is also p, the total work done per revolution is 4pla.

The force acting on the magnetism of one of the faces, and urging this face towards the other, will be less than B by 27r1, the part of the total force due to the first face itself; hence the force per unit of area with which the faces would press against each other if in contact is P = (B-27rI)I =27rT 2 +HI = (B 2 -H 2) =/81r.

These equations can be made to represent the state of convective equilibrium of the atmosphere, depending on the gas-equation p = pk =RA (6) where 0 denotes the absolute temperature; and then d9 d

**p R**dz - dz (p) n+ 1' so that the temperature-gradient deldz is constant, as in convective equilibrium in (I I).I n a straight uniform current of fluid of density p, flowing with velocity q, the flow in units of mass per second across a plane area A, placed in the current with the normal of the plane making an angle 0 with the velocity, is oAq cos 0, the product of the density p, the area A, and q cos 0 the component velocity normal to the plane.

If a force Q acting at R maintains equilibrium, QR/4 = (P - p)r =T.

This is equivalent to a steady pressure p i per unit area where +0 pi - zfff v J 1 (h3m3/ir3)e hm(u2+v2+w2)mu2dudvdw.

In addition there is a pressure between the layers of the medium, and if this pressure in the undisturbed parts of the medium is P, momentum P per second is being transferred from right to left across each square centimetre.

If P is the undisturbed pressure and P+w the pressure at AB, the momentum entering through AB per second isJ01(P+w-+pu2)dt.

AdvertisementBut the tension at P is T, parallel to the tangent, and T sin 4 parallel to PM, and through this - T sin is the momentum passing out at P per second.

The mass of matter moving through A per second is pwa 2 U, where a is the radius of the wire and p is its density.

Let E be the effective elasticity of the aether; then E = pc t, where p is its density, and c the velocity of light which is 3 X 10 10 cm./sec. If = A cos" (t - x/c) is the linear vibration, the stress is E dE/dx; and the total energy, which is twice the kinetic energy Zp(d/dt) 2 dx, is 2pn2A2 per cm., which is thus equal to 1.8 ergs as above.

It is well known in England for its graceful habit, the slender, grey - or white - barked stem, the delicate, drooping branches and the quivering leaves, a bright, clear green in s

**p r**i n g, becoming duller in the summer, but often keeping their greenness rather late into the 5 autumn.In other words, the increase of pressure per degree (dp/d0) divided by p should be constant and equal to B; but observation shows that this ratio decreases, e.g.

AdvertisementTo express this symbolically, let dii represent the area of a portion of a pair of rubbing surfaces at a distance r from the axis of their relative rotation; p the intensity of the normal pressure at du per unit of area; and f the coefficient of friction.

If the density be a, the attraction between the whole of one side and a layer upon the other distant z from the plane and of thickness dz is 27r6 2 P(z)dz, reckoned per unit of area.

If C is the intensity of the current through a simple thermocouple, the junctions of which are at temperatures t and 1', a quantity of heat, P X C, is absorbed by the passage of the current per second at the hot junction, t, and a quantity, P X C, is evolved at the cold junction, t'.

The coefficients, P and P', are called coefficients of the Peltier effect, and may be stated in calories or joules per ampere-second.

On this hypothesis, if we confine our attention to one of the two metals, say p", in which the current is supposed to flow from hot to cold, we observe that p"dT expresses the quantity of heat converted into electrical energy per unit of electricity by an E.M.F.

AdvertisementThe quantity of heat p"T is brought up to one side of the junction per unit of electricity, and the quantity of heat p'T taken away on the other.

Median intervocalic f gives v (Estve, S t ep h an u s); it has disappeared from

**p r**0 f u n d u s, which yielded the form preon, then pregon (g being introduced to obviate the,hiatus).He also wrote a treatise entitled De Petal reel de la presse et des pamphlets depuis Francois

**P r**jusqu'a Louis XIV (1834), in which he refuted an empty paradox of Charles Nodier, who had tried to prove that the press had never been, and could never be, so free as under the Grand Monarch.We were also given the chance to talk and

**p r**ay with the leader s who were all really nice.From this we deduce for the charge p per cubic centimetre (I/41r)Xio-5 (volt/cm 2), or 2.7 X 101 electrostatic units.

AdvertisementMany text-books on engineering give the relation P= 005 v 2 when P is the pressure in lb per sq.

The magnitude of F when p and e are put each equal to unity, is usually called the tractive force of the locomotive per pound of mean effective pressure in the cylinders.

The work done in expanding to infinity from p tons per sq.

This is equal to the product of the thermal capacity of the element, cgdx,, by the rate of rise of temperature dO/dt, together with the heat lost per second at the external surface, which may be written hpodx, if p is the perimeter of the bar, and h the heat loss per second per degree excess of temperature 0 above the surrounding medium.

The heat generated by the current C at a point x where the temperature-excess is 0 is equal per unit length and time (t) to that lost by conduction -d(gkdo/dx)/dx, and by radiation hpo (emissivity h, perimeter p), together with that employed in raising the temperature gcdo/dt, and absorbed by the Thomson effect sCdo/dx.

The "indicated horse-power" of a reciprocating engine is given by Aspn/ 33,000, where A is the area of the piston in square inches, S the length of the stroke in feet, P the mean pressure on the piston in lb per sq.