(b) The following graph of p versus was obtained. Error bars were negligibly small. 4. 3- p/ 10 Pa 2- 1 m-1 The equation of the line of best fit is p = a+ Determine the value of b including an appropriate unit. (c) Outline how the results of this experiment are consistent with the ideal gas law at constant temperature. 6, 4) 3-

(b) The following graph of p versus was obtained. Error bars were negligibly small. 4. 3- p/ 10 Pa 2- 1 m-1 The equation of the line of best fit is p = a+ Determine the value of b including an appropriate unit. (c) Outline how the results of this experiment are consistent with the ideal gas law at constant temperature. 6, 4) 3-

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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For the given data generate the forecast for each of the time period using moving average for n=3 periods and weighted moving average for n=D4, also find the forecast for the 9th 10th and 11th. S.NO DEMANDS MOVING AVERAGE n=3 WEIGHTED MOVING AVERAGE n=4 1 100 2 120 3 110 4 130 110 140 120 119 160 126.67 129 7 150 143.33 143 8 140 150 148 9. 150 147
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Creep exercises The following data in the table below was obtained a from rupture test. Stress (MPa) Temperature (°C) Rupture time (hr) T 550 580 0.75 550 555 5.5 550 540 19.2 550 525 62.0 70 760 2.05 70 730 8.2 70 700 36.5 70 675 134 Assume: C = 46 Establish whether the Larson-Miller parameter is valid for both stresses (550 and 70 MPa). Was there a change in creep mechanism when changing the stress from 550 to 70 MPa during rupture test? Motivate your answer with the aid of calculation.
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. 2) A following figure and table display creep test data obtained from a uniaxial specimen having an initial gauge length of 2 cm. Calculate the steady-state creep rate. Length |(cm) 2.3 Time | (h) 2.25 2.004 2.2 100 2.010 200 2.020 400 2.030 1000 2000 2.045 2.075 2.1 2.05 4000 2.135 6000 2.193 7000 2.230 1.95 8000 2.300 1000 2000 3000 4000 5000 6000 7000 8000 Time (h) (rupture) | Length between the gauge marks (cm) 2.
PLEASE CHOOSE THE CORRECT OPTİONcourse name : Measurement Technique
7. Repeat the experiment using a second and third rod of different material. Data Table: T; °C Lo m Aluminum 0.30 Material AL m T; °C AT °C 5.44 x 10-4 24.6 100.2 0.29 4.21 x 10-4 23.5 99.9 Brass 0.30 3.83 х 104 25.0 100 Copper Data Analysis Table Experimental a Accepted a /°C 24 x 10-6 Material Error % Aluminum 19 х 106 Brass 17x 10-6 Сopper
2. An electrical firm manufactures light bulbs that have a lifetime that is approximately normally distributed with a standard deviation of 36 hours. A lifetime test of n=36 samples resulted in the sample average of 1510 hours. Assume the significance level of 0.05. (a) Test the hypothesis Ho: µ = 1000 versus H1: µ# 1000 using a p-value. (b) Test the hypothesis using critical region(s) approach. (c) Suppose that the true mean lifetime is 1510 hours. What is type Il error probability for this| two-sided test.
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During a tensile test of Aluminum alloy whose initial diameter was 0.505-in and gage length was 2.0-in, the following data was recorded. Load Elongation (in.) Load Elongation (in.) 0.020 (1b) |(Ib) 14 000 2 310 0.00220 14 400 0.025 4 640 0.00440 14 500 0.060 6 950 0.00660 14 600 0.080 9 290 0.00880 14 800 0.100 11 600 0.0110 14 600 0.120 12 600 0.0150 13 600 Fracture a) Determine Stress and strain b) Draw the stress strain diagram c) Determine the following mechanical properties 1) Proportional limit, 2) Modulus of elasticity 3) Yield point 4) Ultimate strength 5) Rupture strength.