the hydraulic residence time t is given by t=V/q where V is the volume in the tank and q is the volumetric flow rate. A theoretical residence time can be given by the relationship between concentration and time ln(C)=-(t/tav) where tav in this equation is the residence time.
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The formula for calculating residence time is: Residence time = Volume of the system / Flow rate of the system. This formula helps in determining the average amount of time a substance will spend in a system or a reactor.
The formula for calculating depth using sonar is depth = (velocity of sound in water x time taken for sound wave to return) / 2. This formula takes into account the speed of sound in water and the time it takes for the sound wave to travel to the bottom and back to the receiver.
The formula for calculating the trajectory or destiny of an object would involve factors such as initial velocity, acceleration, and gravitational force acting upon the object. One common formula is the kinematic equation: final position = initial position + initial velocity * time + (1/2) * acceleration * time^2.
Velocity is the rate of change of an object's position with respect to time. The formula for calculating velocity is velocity = distance/time, where velocity is typically measured in meters per second (m/s).
Speed is calculated as distance divided by time. The formula for calculating speed is: Speed = Distance / Time
The formula for calculating growth rate is: Growth Rate = (Present or Future Value - Past Value) / Past Value * 100%. This formula helps determine the percentage increase or decrease in a quantity over a specific period of time.