The torque which is to be transmitted in the tyres defines it
The ratio is the driven gear divided by the driver gear. This determines the gear ratio.
In the drive train you have the front chainwheel/ring and the rear sprocket that both engage the chain. The pointy bits on sprocket and chainwheel which allows the chain to grip are called teeth. The ratio between the tooth counts is what determines which gear ratio the bike has.
The turns ratio between the primary and the secondary.
The ratio of output windings to input windings determines the ratio of output voltage to input voltage. The ratio of current is the inverse.
is the ratio between the peak amplitudes of the main and back lobes expressed in dB
The ratio is on a tag on front and rear axle between 2 of the cover bolts
The interest coverage ratio is the calculation that determines a company's ability to repay debt payments. It is this calculation that determines whether or not companies are able to obtain loans.
A stock to sales ratio determines the relationship between how much stock you have and how much you are selling. Ideally this ration should be as low as possible without being so low that your store appears empty.
Transformer ratio, more correctly turns ratio, is the number of turns in the primary winding divided by the number of turns in the secondary winding.
The brake ratio in a front-wheel drive (FWD) vehicle typically refers to the distribution of braking force between the front and rear wheels. In FWD cars, a common brake ratio is around 60-70% of the braking force applied to the front wheels and 30-40% to the rear wheels. This distribution is due to the weight transfer that occurs during braking, which places more load on the front wheels. However, the exact ratio can vary based on the vehicle's design and intended use.
Surface area to volume ratio
Hair color is determined by colored molecules in the cortex of the hair. The ratio between these molecules determines hair color. The molecules are called eumelanin and pheomelanin.