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Under the right conditions, it is possible, due to surface tension, to have metal objects float on water. Consider placing a short length of a small diameter steel (sp. wt. =460 lb/ft^3) rod on a surface of water. What is the maximum diameter, dmax that the rod can have before it will sink? Assume that the surface tension forces act vertically upward. Note: A standard paper clip has a diameter of 0.036 in. Partially unfold a paper clip and see if you can get it to float on water. Do the results of this experiment support your analysis?
Are either of the Ax or Jx forces relevant to finding the tension between H and J. If so, what is the easiest way to solve for those 2 unknowns.
Determine the discharge of a trapezoidal concrete channel section with a bottom width of 4 ft and side slopes of 2:1. The depth of flow is 5 ft and the channel slope is 0.5%
If a tractor with 23-hp, a max speed of 3.6 mph in 1st gear and an effieiciency of 92% is operated operated down a 4% slope and the rolling resistance is 80 lb/ton, what is the maximum external pull in each of the 4 gears.
For some minerals color is a diagnostic property making identification rather easy. However, certain minerals can also occur in a wide variety of colors making color a poor tool for identification. List different colors for the mineral quartz lo..
1.How can the water pressure in a pipe be measured simply 2.What force causes the water pressure to fall as it flows along a pipe 3.How do you think the pressure drop will change when each of the three variables changes
Runoff from a storm flows into a reservoir with a surface area of 20.0 ha at a constant rate. The reservoir level is observed to rise at 1 mm per minute when water is being released through the dam at a rate of 10 m3 per second.
A piece of wire is stretched from length l1 to length l2 (step A), and then from length l2 to length l3 (step B). (i) Write down an expression for the engineering strain associated with step A.
for a uniformly loaded square area, what is the stress to load ratio at a depth of 2B below the CENTER of the loaded area
The mass flow rate of steam into a steam turbine is 5 kg/s . The turbine has a heat loss of 5 kj/s. if the velocity of the refrigerant is to be limited to 2 m/s, what is the minumum allowable pipe diamter
The material is brought from a borrow site that has yt=19.5 kn/M63 with w=16.5% and Gs=2.70 How much of the borrow material (in cubic meters) is required to fill the site How heavy is it
Given a water that contains 80 mg/L of glucose (C6H12O6) and 18 mg/L of ammonia (NH3): a. What is the carbonaceous oxygen demand (in mg 02/L) b. What is the nitrogenous oxygen demand (in mg 02/L)
if you were asked to determine the mechanical properties of ametal by concucting a test, what type of test whould you use, and what data can you abtain from that test
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