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You have two wires connected end to end. Wire 1 is copper and wire 2 is made using a special carbon conductor. Wire 1 has a resistance of 0.215 ohms/ft and is 500 ft long. Wire 2 has a resistance of 0.141 ohms/ft and is 700 ft long. Both of these resistances are measured at 20 degrees Celsius. If the ambient temperature is 99 degrees Farenheit, what is the change in the wire's total resistance?
Describe in your own words the three strengthening mechanisms i.e., grain size reduction, solid solution strengthening, and strain hardening. Be sure to explain how dislocations are involved in each of the strengthening techniques.
a prismatic bar AB of length L, cross section A, modulus of elasticity E, and weight W hangs vertical under its own weight. if the bar is a riser pipe hanging from a drill rig at sea, what is the total elongation of the pipe
Neglecting the effect of altitude of local gravitional acceleration, determine the vertical distance climbed. Assume an average air density of 1.18 kg/m^3.
The flow through an 8 ft. Parshall Flume is 129 cfs when Ha is 2.50 ft. Determine the downstream water level (Hb) that would produce this flowrate.
The area is about 100,000 ha, the ground water pumping about 500 million m3 per year, and the water table drop about 3 m per year. Assuming no replenishment, what is the specific yield of the aquifer material
Property taxes,insurance and storage will run 5%.What is the owning cost for the dozer?Use the time value method to calculate the depreciated portion of the ownership cost.
What should TAC , TAB and the acute angle ? between TAB and the vertical to minimize the tension TAB ? Take o and W = 1,000 N. Hint: Consider various possible force triangles and decide on inspection how to minimize TAB.
Roughly what is the maximum Volume of treated wastewater should you put in the bottle if you want to have at least 2.0mg/l of DO at the test (filling the rest of the bottle with the water
The fire department proposes to approach the truck from the upstream side and heavily spray the truck with water to prevent an explosion. Will this help to reduce the chlorine concentration downstream?
determine the preassure in psi at a depth of 20 ft below the free surface of a body of water and find the absolute pressure when the barometer reads 29.9 inches of mercury.
The number of vacancies in some hypothetical metal increases by a factor of 4 when the temperature is increased from 1090 K to 1140 K. Calculate the energy (in J/mol) for vacancy formation assuming that the density of the metal remains the same ov..
A 170 kg granite rock (ρ = 2700 kg/m 3 ) is dropped into a lake. A man dives in and tries to lift the rock. Determine how much force the man needs to apply to lift it from the bottom of the lake. Do you think he can do it?
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