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 the net force on the system is zero, the torque measured from any point in space is the same.

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 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 molten, the salt sodium chloride can be electrolyzed to yield metallic sodium and gaseous chlorine.

When comparing the reduction potentials in reactions 2 and 4, the reduction of chloride ion is favored.

When renin levels are elevated, the concentrations of angiotensin II and aldosterone increase, leading to increased sodium chloride reabsorption, expansion of the extracellular fluid compartment, and an increase in blood pressure.

** Sodium chloride ( table salt ) or any other salt in water forms an electrolyte: When dissolving, salt dissociates into ions.

When used for etching, ferric chloride does not produce a corrosive gas, as acids do, thus eliminating another danger of traditional etching.

When the CFTR protein does not work, chloride and thiocyanate are trapped inside the cells in the airway and outside in the skin.

When healthy, the kidneys maintain the body's internal equilibrium of water and minerals ( sodium, potassium, chloride, calcium, phosphorus, magnesium, sulfate ).

When a concentrated solution of ammonia is added to a suspension of silver chloride dissolution occurs because a complex of Ag < sup >+</ sup > is formed

When added to Portland cement as a pozzolan, it can reduce chloride permeability and improve workability.

When this small molecule is water, it is known as a dehydration reaction ; other possible small molecules lost are hydrogen chloride, methanol, or acetic acid.

When using oxalyl chloride as the dehydration agent, the reaction must be kept colder than − 60 ° C to avoid side reactions.

* When a 0. 1 M hydrochloric acid solution containing methyl green indicator is added to a 5 M solution of magnesium chloride, the color of the indicator changes from green to yellow — indicating increasing acidity — when in fact the acid has been diluted.

When bastnaesite started being processed for rare earth content in about 1965, it too was converted to a version of rare earth chloride, and on to Mischmetal.

When a visible indication of the moisture content of the silica gel is required, ammonium tetrachlorocobaltate ( II ) ( NH < sub > 4 </ sub >)< sub > 2 </ sub > CoCl < sub > 4 </ sub > or cobalt chloride CoCl < sub > 2 </ sub > is added.

When the chloride ions have sufficient velocity, the energy of the resulting iodide ions after the collision is much lower than expected, and it is theorized that energy is lost as a result of a full roundabout of the methyl group around the iodine atom before the actual displacement takes place.

When small crystals ( called grains ) of silver salts such as silver bromide and silver chloride are exposed to light, a few atoms of free metallic silver are liberated.

When 3 was treated with an excess of aluminium chloride, the ethoxyl group of 3 was cleaved, and then heating and working up of the mass was done to give a high yield of 4.

When the potassium chloride was washed out, small globules of magnesium remained.

When using calcium chloride or potassium chloride, the products contain calcium or potassium instead of sodium.

When ferric chloride is used as the etchant, no metal parts other than titanium can be used in the etching equipment.

When heated with calcium chloride — ammonia to 200 ° C it yields meta-dioxydiphenylamine.