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A distance between two points is exactly 100 feet. This distance is indicated correctly on a steel surveyor's tape whenused at a temperature of 70 degrees F and subjected to a pull of 10lbs. If in measuring a certain distance the tape indicatesthe distance to be 100 feet when the tape is subjected to a temperature of 100 degrees F and a pull of 20 lbs, what is thecorrect distance being measured?
determine the velocity and acceleration of point C of the belt, (a) immediately before the power is turned off. (b) 9 s later.
A gas stream contains 18.0 mole% hexane and the remainder nitrogen. The stream flows to a condenser, where its temperature is reduced and some of the hexane is liquefied. The hexane mole fraction in the gas stream leaving the condenser is 0.0500.
A HEPA (high efficiency particulate air) filter is monitored periodically for replacement. Specifications state that if the pressure drop across the filter exceeds 1 inch of water, the filter should be replaced.
Derive an expression relating effluent concentration to influent concentration, hydraulic residence time, and the reaction rate constant for a zero order reaction in a CSTR at stead-state.
Determine the COD, carbonaceous BOD, and nitrogenous oxygen demand of a 100 mg/L solution of urea (N2H4CO)
A 1.2-in. rainfall occurs in a 6-hour duration. If this represents an exceedence probability of 10%, what is the probability it will be equaled or exceeded at least once in the next 3 years. What is the probability it will be equaled or exceeded e..
A falling-head permeability test was carried out on a clay soil of diameter 100 mm and length 150 mm. In 4 minutes the head in the standpipe of diameter 5mm dropped from 680 to 350 mm. Calculate the hydraulic conductivity of this clay.
Given an 18-in. concrete conduit with a roughness coefficient of n = 0.013, s = 0.02, and a discharge capacity of 15 cfs, what diameter pipe is required to triple the capacity?
A Silane contains 90.31 % silicon and 9.69 % hydrogen by mass. The compound has a molar mass of 62 g/mol. Determine the compound's empirical and molecular formula.
The thermal efficiency of an aircraft gas turbine engine (turbojet, based on ideal Brayton cycle) is 25%. The aircraft travels at a speed 770 km/h at an altitude 6800 m above sea level (standard atmospheric air). The combustion chamber outlet temp..
Before the second particle catches the first particle, what is the maximum distance between the two particles.
A chemical is added at the beginning of a water treatment plant at a dose of 750 lb/day. The water treatment plant provides water to a community of 200,000 people and the average water consumption in the city is 110 gallons per capita per day (gpc..
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