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Solve the given problems.
The electric power P (in W) dissipated in a resistance R (in Ω) is given by P = Ri2 where i is the current (in A) in the resistor. Find the equation for the total power of 64 W dissipated in two resistors, with resistances 2.0 Ω and 8.0 Ω respectively, and with currents i1 and i2 respectively. Sketch the graph, assuming that negative values of current are meaningful
One gram of pepper is placed into a 100 mL beaker, and the beaker is filled with water to the 100 mL mark. What is the concentration of pepper in mg/L? What should one assume in this problem? What is the density of pepper? What is the volume of 1 g o..
Our ESP is collecting 95% of the particles in our exhaust stream. We are under pressure to improve its performance. It has been suggested that if we were to cool the inlet gas fron the present 600F to 250F, the performance would improve.
Name three types of metamorphic foliations, and draw a small sketch that shows a situation. Where a metamorphic foliation could cause problems in an excavation.
Size an orifice and a weir for problem 2 on page 398 and 399 of the text book to achieve a flow rate of 1 cfs at an elevation of 102.5 feet and a total flow rate of 50 cfs at an elevation of 106 feet
In order to comply with regulations, an iron/steel sinter plant installs an electrostatic precipitator (ESP) to collect 98% of the 10 ?m particles from an air stream flowing at 2 m3/s
In water and wastewater treatment process a filtration device may be used to remove water from the sludge formed by the precipitation reaction. The initial concentration of sludge from softening reaction is 2% (20,000 mg/L) and the volume of sludge i..
The pressure gage on an airplane flying overhead indicates that the atmospheric pressure at that point is 9.7 psia and that the air temperature is 42 deg. Fahrenheit. Assume a linear decrease of temperature with elevation
You are furnished with three sizes of particles. One is gravel with porosity of 0.32, the second is a coarse grained sand with porosity of 0.37, and the third is a fine grained sand with porosity of 0.23. If the coarse grained sand
Assuming the origin is placed where the bullet begins to move, the force (in newtons) exerted by the expanding gas on the bullet is 18000 + 7000x - 20000x2, where x is in meters.
Search the web or visit a local drawing office to find a commercially available structural analysis package (or one that you are already familiar with). Describe, using your own words, the following features of the package:
Missiles designed for defense against ballistic missiles haveattained accelerations in excess of 100g's or 100 times theacceleration due to gravity. Suppose that the missile
A large, static, horizontal , isotropic, confined aquifer 100m thick has a uniform hydraulic conductivity field with K=0.1m/d . The piezometric head s in two observation wells are observed to be 103m and 97.3m
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