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Food limitation of population growth is described using the Monod model. Population growth is characterized by the maximum specific growth rate (µmax ) and the half-saturation constant for growth (Ks ).
(a) Calculate the specific growth rate (µ) of the population in Problem 5-1 growing at a substrate concentration of 25 mg/L according to Monod kinetics if it has a Ks of 50 mg/L.
(b) What percentage of the maximum growth rate for the exponentially growing population size would this be?
The 3.5-Mg engine is suspended from a spreader beam having a negligible mass and is hoisted by a crane which exerts a force of 40 kN on the hoisting cable. Determine the distance the engine is hoisted in 2.4 s, starting from rest.
A rectangular channel has a bottomwidth = b and flow depth = y. Prove that for a given area, the mostefficient rectangular cross section is one with y = b/2.
Standard air is drawn from the atmosphere into a 1.25 m diameter cylindrical duct by a fan mounted inside the duct. This air is discharged down stream from the fan through a 0.6 m diameter duct at a velocity of 25 m/s and atmosphere pressure.
Determine the young's modulus for a metal whose elasic limit isone half of its UTS. The material has a strain of 0.002 at theelastc limit and a gauge length of 50mm. The UTS of the metal is300 MPa.
Considering the ebb flow from a bay into a narrow inlet (z = 16 × cosh(W)), calculate the flow velocity at the inlet throat.
What is the submerged discharge head loss. By what percentage is this loss reduced if the provision of a draft tube increases the discharge flow area to six times the size.
(a) determine if the flow will choke and both the downstream and upstream water depths. (b) if there is also a 1 ft high step up in bottom elevation at the contraction, determine if the flow will choke and both the downstream and upstream water de..
A pipe is to be installed under the ground on a bed of aggregate 6 in. thick. The entire weight on the aggregate from pipe and soil above the pipe is 1800 lbs. per linear foot of pipe. What is the pressure on the soil if theta is 45 degrees? Assum..
The constant of spring AB is k, and the spring is unstretched when θ = 0. Knowing that R = 10 in., a = 20 in., and k = 5 lb/in.,
Question about Spring, A 37kg object is placed onto a coil spring which has been compressed 43mm. The force used to compress the spring was 35KN.
A number 10 (No. 10) steel rebar is tested in tension. By monitoring the load reading of the testing machine, it was found that the specimen yielded at a load of 41,600 lb and fractured at 48,300 lb.
A hurricane has an average rainfall depth of 9in over a 200-mi^2 watershed. What is the size of the reservoir needed to contain 20% of the rain completely.
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