When the shuttlecock is well below net height, players have no choice but to hit upwards.

When the shuttlecock is near to net height, players can hit drives, which travel flat and rapidly over the net into the opponents ' rear midcourt and rearcourt.

When the angular velocity of this co-rotating frame is not constant, that is, for non-circular orbits, other fictitious forces — the Coriolis force and the Euler force — will arise, but can be ignored since they will cancel each other, yielding a net zero acceleration transverse to the moving radial vector, as required by the starting assumption that the vector co-rotates with the planet.

When this field is instead studied using the QED vacuum of quantum electrodynamics, it is seen that the plates do affect the virtual photons which constitute the field, and generate a net force — either an attraction or a repulsion depending on the specific arrangement of the two plates.

When investors and managers perform DCF analysis, the important thing is that the net present value of the decision after discounting all future cash flows at least be positive ( more than zero ).

When the net electric charge of an object is non-zero and motionless, the phenomenon is known as static electricity.

When the group of covalently bound atoms bears a net charge, the group is referred to more properly as a polyatomic ion or a complex ion.

When light makes multiple reflections between two or more parallel surfaces, the multiple beams of light generally interfere with one another, resulting in net transmission and reflection amplitudes that depend on the light's wavelength.

When diamagnetic material is placed in a magnetic field, a magnetic dipole tends to align itself in opposed polarity to that field, thereby lowering the net field strength.

When the fish are old enough they are freed from the net to mature in the open sea.

When a magnetic field is applied, the dipoles will tend to align with the applied field, resulting in a net magnetic moment in the direction of the applied field.

When an external magnetic field is applied to an assembly of superparamagnetic nanoparticles, their magnetic moments tend to align along the applied field, leading to a net magnetization.

When using contracts, a supplier should not try to verify that the contract conditions are satisfied ; the general idea is that code should " fail hard ", with contract verification being the safety net.

When some other piece is chosen it is known as " underpromotion ", and the piece selected is most often a knight, used to execute a checkmate or a fork giving the player a net increase in material compared to promoting to a queen.

When net income is composed of large non-cash items it is considered low quality.

When the disk undergoes a full clockwise revolution, the bicycle wheel will not return to its original position, but will have undergone a net rotation of.

When the membrane is in thermodynamic equilibrium ( i. e., no net flux of ions ), the membrane potential must be equal to the Nernst potential.

When rain came, the swamp overflowed into the ditch, washing Tuna-roa into the meshes of the net.

When a mail server receives a connection from a client, and wishes to check that client against a DNSBL ( let's say, dnsbl. example. net ), it does more or less the following:

When net chloride flows out of the cell, GABA is excitatory or depolarizing ; when the net chloride flows into the cell, GABA is inhibitory or hyperpolarizing.

When the net flow of chloride is close to zero, the action of GABA is shunting.

When the temperatures are the same, no net evaporation of water in air occurs ; thus, there is no cooling effect.

When words can be used in a more fresh and primitive way so that they strike with the force of sights and sounds, when tones of sound and colors of paint and the carven shape all strike the sensibilities with an undeniable force of data in and of themselves, compelling the observer into an attitude of attention, all this imitates the way experience itself in its deepest character strikes upon the door of consciousness and clamors for entrance.

When the snobbery that alienates Pip from Joe finally gives way before the deeper and stronger force of love, the reunion is marked by an embarrassed handshake at which Pip exclaims: `` No, don't wipe it off -- for God's sake, give me your blackened hand ''!!

When Robert Hooke discovered Hooke's law in 1660, he first published it in anagram form, ceiiinosssttuv, for ut tensio, sic vis ( Latin: as the tension, so the force ).

When a tyrannosaur would have pulled back on a piece of meat, the force would tend to push the tip of tooth toward the front of the mouth and the anchored root would experience tension on the posterior side and compression from the front.

When the Vikings returned in force in 892 they found a kingdom defended by a standing, mobile field army and a network of garrisoned fortresses that commanded its navigable rivers and Roman roads.

When the Roman infantry became entangled in combat with his army, the hidden ambush force attacked the legionnaires in the rear.

When a bow is used, the muscles are able to perform work much more slowly, resulting in greater force and greater work done.

When the left ventricle contracts to force blood into the aorta, the aorta expands.

: When poets are by too much force betrayed.

When Democratic-Republicans in some states refused to enforce federal laws, and even threatened to rebel, Federalists threatened to send the army to force them to capitulate.

: When, after the action had thus occurred, his own men returned to each general, Scipio could adopt no fixed plan of proceeding, except that he should form his measures from the plans and undertakings of the enemy: and Hannibal, uncertain whether he should pursue the march he had commenced into Italy, or fight with the Roman army which had first presented itself, the arrival of ambassadors from the Boii, and of a petty prince called Magalus, diverted from an immediate engagement ; who, declaring that they would be the guides of his journey and the companions of his dangers, gave it as their opinion, that Italy ought to be attacked with the entire force of the war, his strength having been nowhere previously impaired.

When the news became certain, the French press insisted that the defeat was the result both of an overwhelmingly large British force and unspecified " traitors.

When it was deployed on duty in Northern Ireland, the British Army was welcomed by Roman Catholics as a neutral force there to protect them from Protestant mobs, the Royal Ulster Constabulary ( RUC ) and the B-Specials.

When a metal wire is subjected to electric force applied on its opposite ends, these free electrons rush in the direction of the force, thus forming what we call an electric current.

When the last period began, all hope of conciliating the Protestants was gone and the Jesuits had become a strong force.

When the sheriff returned to Cadillac, a force consisting of several hundred armed men was assembled ; this group reportedly included a brass band.

When a manipulation is performed, the applied force separates the articular surfaces of a fully encapsulated synovial joint, which in turn creates a reduction in pressure within the joint cavity.

When the centrifugal force term is expressed in terms of parameters of the rotating frame, replacing with, it can be seen that it is the same centrifugal force previously derived for rotating reference frames.

When the angle θ does not satisfy the above condition, the horizontal component of force exerted by the road does not provide the correct centripetal force, and an additional frictional force tangential to the road surface is called upon to provide the difference.