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A rigid rectangular shelf is suspended from a rigid ceiling by mean of four rods of diameter .505 inches. The two rods to the left L1 and L2, are made of steel. The two rods to the right R1 and R2 are made of aluminum. Two weights are positioned on the platform - the larger weight of 10 kips at the left and the smaller weight of 5 kips to the right. The Est = 30E3 ksi, Eal=16E3 ksi, Vst=.3, and Val=.33
a. calculate the stress in L1 and L2
b. calculate the stress in R1 and R2
c. calculate the axial strain and the transverse strain in the steel rods.
d. Calculate the axial strain and the transverse strain in the aluminum rods.
e. If the original length of all four rods is 10ft, calculate the total axial deformation in the steel rods.
f. If the original length of all four rods is 10ft calculate the total axial deformation in the aluminum rods.
If a watershed of drainage area 100 mi^2 has abstractions of 2.5 in/hr, what runoff volume will show up in the nearby stream in addition to baseflow for a rainfall of 5-hr duration with an intensity of 4 in/hr
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what is the probability that less than 0.5 inches of precipitation will occur in any January? What is the probability that more than 2.5 inches wil
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The mine wants to change the hole diameter to 229 mm and needs a new drilling pattern that will not result in coarser fragmentation. For this exercise you can assume homogenous geology and no adverse effects due to geological structure.
Determine the chemical oxygen demand (COD) of a mixture of 250 mg/l glutamic acid (C5H10N2O3) and 200 mg/l of glucose(C6H12O6).
Evaluate the percent mass loss for each of the three thermal events indicated on the attached TGA trace
The maximum flow rate of a standard shower head is about 3.5 gpm and can be reduced to 2.75 gpm by switching to a low-flow shower head that is equipped with flow controllers. Consider a fam- ily of four, with each person taking a 6-minute shower e..
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