Four core samples from a block of sandstone have been deformed in a triaxial deformation apparatus...

Four core samples from a block of sandstone have been deformed in a triaxial deformation apparatus until they fail by faulting. The results are summarized in the tablebelow.

Confining pressure (MPa). Axial stress at failure (MPa) Fault angle (q,°)

50 220 58

100 340 56

150 460 57

200 575 54

1. Calculate for each experiment (a) the differential stress and mean stress in the sample when it failed, and (b) the normal and shear stresses on the failure plane at the time of failure.

2.Use the information from #1 to plot a Mohr diagram (sn vs. ss) that shows the state of stress when the rock failed in each of the four experiments (i.e., four circles on one diagram). NOTE: Owing to symmetry required by Newton’s Third Law, only theupper half of the diagram (ss > 0) needs to be plotted.

Expert Solution

genius_generous answered 2 years ago

17-14: The following sample data have been collected from independent samples from independent samples from two...

17-14: The following sample data have been collected from independent samples from independent samples from two populations. The claim is that the first population median will be larger than the median of the second population. Sample 1 Sample 2 4.4 2.6 3.7 4.2 2.7 2.4 3.5 5.2 1.0 2.0 4.0 4.4 3.5 2.8 4.9 4.3 2.8 3.1 State the appropriate null and alternative hypotheses. Using the Mann-Whitney U-test, based on the sample data, what...

Some drugs will be tested for their effectiveness on the samples that have been taken from...

Some drugs will be tested for their effectiveness on the samples that have been taken from patient samples. Drugs that can kill cancer stem cells will be selected. The lab that you will pursue your project contains and provides all you need by means of cellular and molecular biology equipment to perform your experiments. Please write down all the steps to reach your goal.

You are given four samples (approximately 10% oil and 90% water) all of which have been...

You are given four samples (approximately 10% oil and 90% water) all of which have been processed to have an average fat droplet size of 1.57 microns in each. They were prepared in the following manner and have different rates of separation: Sample 1 was processed with a standard homogenizer at 2000 psi with a velocity of separation being .3 m/s Sample 2 was processed with a standard homogenizer at 2000 psi (1st stage) and 500 psi (2nd stage) with...

Eight samples (m=8) have been collected from a manufacturing process that is in statistical control, and...

Eight samples (m=8) have been collected from a manufacturing process that is in statistical control, and the dimension of interest has been measured for each part. It is desired to determine the values of the center, LCL, and UCL for ?̅ and R charts. The calculated ?̅ values (units are in mm) are 2.723, 1.993, 2.008, 1.723, 1.999, 2.001, 1.995 and 2.723 The calculated R values (mm) are 0.015, 0.021, 0.020, 0.023, 0.723, 0.723, 0.014 and 0.011. Also plot the...

Why have Facebook and Twitter been erecting walls that block users from integrating these services? What...

Why have Facebook and Twitter been erecting walls that block users from integrating these services? What is the free rider problem? Give real examples of this phenomenon in social networks and digital media.

Two independent samples have been selected, 67 observations from population 1 and 94 observations from population...

Two independent samples have been selected, 67 observations from population 1 and 94 observations from population 2. The sample means have been calculated to be x¯1 = 9.9 and x¯2 = 10.2. From previous experience with these populations, it is known that the variances are σ21= 39 and σ22 = 38 (a) σ(x¯1−x¯2). answer: _____ (b) Determine the rejection region for the test of H0:(μ1−μ2)=2.94 and Ha:(μ1−μ2)>2.94 . Use α=0.02 z > : _____ (c) Compute the test statistic. z= (d) Construct a...

The table below shows pulse rates taken from random samples of adults. The data have been...

The table below shows pulse rates taken from random samples of adults. The data have been sorted by age. Use one-way analysis of variance (ANOVA) to test the claim that the three different age groups have the same mean pulse rate. Use α = .05 . Adult Pulse Rates by Age Group 20-29 64 64 76 64 60 88 72 56 88 72 68 80 72 72 68 64 30-39 88 72 85 60 84 84 64 56 72 68...

Four blocks are connected by a weightless cord. Block A hangs from a table on the...

Four blocks are connected by a weightless cord. Block A hangs from a table on the left. Block B and C rest upon the table. Block D hangs from the table on the right. Block A and D are over pulleys. Block B has a weight of 1N, Block C=4N and Block D=7N. a. Find the weight of Block A such that the accelartion of Block B is (g/7) b. Find the coefficient of friction for the table, if the...

Results from the last four samples from a process are shown in the table. Calculate control...

Results from the last four samples from a process are shown in the table. Calculate control limits for an R and X chart. Determine whether the process is in statistical control. Sample number Observation 1 Observation 2 Observation 3 Observation 4 1 5 5.01 4.9 5 2 5.01 5.02 4.98 5 3 5.02 5.07 4.99 4.98 4 4.9 4.92 5.01 5.23 To control the lead time of a process, samples of size ten are taken from the process. If the...

ISP have been allocated the address block 200.23.16.0/20 ISP, wants to divide its address block into...

ISP have been allocated the address block 200.23.16.0/20 ISP, wants to divide its address block into four equal sized address blocks and give one to each of four organizations. Write the address range and also subnet mask for each organization

Question