types:
bits per second,
bps
(computer science) the rate at which data is transferred (as by a modem)
crime rate
the ratio of crimes in an area to the population of that area; expressed per 1000 population per year
data rate
the rate at which circuits or other devices operate when handling digital information
dose rate
the quantity of radiation absorbed per unit time
flux
the rate of flow of energy or particles across a given surface
jerk
(mechanics) the rate of change of acceleration
metabolic rate
rate of metabolism; the amount of energy expended in a give period
miles per hour,
mph
the ratio of the distance traveled (in miles) to the time spent traveling (in hours)
gait,
pace
the rate of moving (especially walking or running)
heart rate,
pulse,
pulse rate
the rate at which the heart beats; usually measured to obtain a quick evaluation of a person's health
rate of return
the amount returned per unit of time expressed as a percentage of the cost
sampling rate
(telecommunication) the frequency of sampling per unit time
solar constant
the rate at which radiant solar energy is received at the outer layer of the earth's atmosphere
spacing
the time between occurrences of a repeating event
radio frequency
an electromagnetic wave frequency between audio and infrared
infrared,
infrared frequency
the infrared region of the electromagnetic spectrum; electromagnetic wave frequencies below the visible range
angular velocity
(physics) the rate of change of the angular position of a rotating body; usually expressed in radians per second or radians per minute
cardiac output
the amount of blood pumped out by the ventricles in a given period of time
isometry
the growth rates in different parts of a growing organism are the same
ROI,
return on invested capital,
return on investment
(corporate finance) the amount, expressed as a percentage, that is earned on a company's total capital calculated by dividing the total capital into earnings before interest, taxes, or dividends are paid
Nyquist rate
(telecommunication) the lowest sampling rate that will permit accurate reconstruction of a sampled analog signal
quick time
a normal marching pace of 120 steps per minute
double time
a fast marching pace (180 steps/min) or slow jog
airspeed
the speed of an aircraft relative to the air in which it is flying
escape velocity
the minimum velocity needed to escape a gravitational field
groundspeed
the speed of an aircraft relative to the ground
muzzle velocity
the velocity of a projectile as it leaves the muzzle of a gun
radial velocity
velocity along the line of sight toward or away from the observer
c,
light speed,
speed of light
the speed at which light travels in a vacuum; the constancy and universality of the speed of light is recognized by defining it to be exactly 299,792,458 meters per second
steerageway
(nautical) the minimum rate of motion needed for a vessel to be maneuvered
terminal velocity
the constant maximum velocity reached by a body falling through the atmosphere under the attraction of gravity
attendance
the frequency with which a person is present
sampling frequency
(telecommunication) the frequency of sampling a continuously varying signal
channel capacity
the maximum data rate that can be attained over a given channel
neutron flux
the rate of flow of neutrons; the number of neutrons passing through a unit area in unit time
radiant flux
the rate of flow of radiant energy (electromagnetic waves)