Physics Laboratory Experiments
8th Edition
ISBN: 9781285738567
Author: Jerry D. Wilson, Cecilia A. Hernández-Hall
Publisher: Cengage Learning
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Chapter 3, Problem 1Q
Explain the probable source of error(s) in the experimental determination of the number of manual pages.
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Chapter 3 Solutions
Physics Laboratory Experiments
Ch. 3 - Prob. 1ASACh. 3 - Does a laboratory balance measure weight or mass?...Ch. 3 - What is the function of the vernier scale on the...Ch. 3 - Distinguish between positive and negative zero...Ch. 3 - What is the purpose of the ratchet mechanism on a...Ch. 3 - Explain how readings from 0.00 through 1.00 mm are...Ch. 3 - Prob. 7ASACh. 3 - Prob. 8ASACh. 3 - Explain the probable source of error(s) in the...Ch. 3 - Prob. 2Q
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- A (An) ______________ measurement is one in which systematic errors are small.arrow_forward(a) A person's blood pressure is measured to be 104 ± 2 mm Hg. What is its percent uncertainty? (Note that percent uncertainties should be reported to two significant figures.) % (b) Assuming the same percent uncertainty, what is the uncertainty in a blood pressure measurement of 80 mm Hg? (Note that uncertainties should be reported to one significant figure.). mm Hgarrow_forward2.) A single reading taken with a meter stick for the length of a cylinder is 5.5 cm. What is the prsable percent error in the reading? 3.) The following readings were taken with a meter stick for the length of a cylinder: 5.5 cm, 5.3 cm, 5.4 cm, 5.5 cm and 5.6 cm. Calculate the standard deviation of the mean, the stand error and the probable percent error. 4.) How many significant figures should be given in reporting the length of the cylinder in question 3? 5.) If the radius of the cylinder in question 2 is 2.4 ± 0.2 cm and its mass is 32.6 ± 0.5 gm, what will be the probable percent error in the density of the cylinder? What will be the probable error in density? How many significant figures should be given in reporting the density? Conclusions?? 02 6) (figure3) 6a)Befer to Figure 3. Given a track length of 90 cm and a height difference of 18 cm, what is sin 6 02 01 Fig. 2 Z)(figure 2) plane (see Figure 2). Attach the diagram in question#8 below. What would be the acceleration given…arrow_forward
- Modern instruments usually have digital readouts; the reading in the rightmost digit will sometimes fluctuate up and down among several values. What type of error is this? Explain its effect on a large data set.arrow_forwardA series of four measurements of g are made in the physics lab. The results of these measurements in ms2/ are: 9.63, 9.58, 9.71, 9.68. The average of these four measurements is the experimental value of g and the accepted value is 9.80 ms2/. What is the percent error of these measurements?arrow_forwardThe size of a large book is measured. Length is measured as 9.4 cm, the height (thickness) is measured as 0.5 cm, the width is measured as 4.80 cm and weight 25 grams. Calculate density of the book and compare with known density of 1.2 gr/cm^3 using percent error formula. What is the precision of each measurement Find the propagation of error for the volume.arrow_forward
- The volume of the rectangular block in the figure is calculated from the following measurements of its dimensions: a = 10.00 ± 0.10 cm, b = 5.00 ± 0.06 cm and c= 4.00 ±0.04 cm. Calculate the error in the value of the volume of the block assuming: a) the errors are independent b) the errors are correlated such that they all push the estimate in the same direction. aarrow_forwardThe mass of an object was measured eight times on a balance readable to +1 g, and the followng values were recorded: (298 + 1)g. (311 + 1)g, (302 + 1)g, (312+ 1)g, (313 + 1)g. (317 + 1)g, (302 + 1)g, and (331 + 1)g. What is the percentage uncertainty of Om x 100% 2 the measurement Select one: O a. 12.862 % O b. 1.286 % O C. 0.129 % O d. 0.013 %arrow_forwardthe volume of the rectangular block in the figure is calculated from the following measurements of its dimensions: a = 10.00 ± 0.10 cm, b = 5.00 ± 0.06 cm and c = 4.00 ± 0.04 cm. calculate the error in the value of the volume of the block assuming: a) the errors are independent b) the errors are correlated such that they all push the estimate in the same direction.arrow_forward
- The measurement error is defined as AX=X-Xo.where Xo is the true value of a physical quantity. X is the measured value of the physical quantity, AX is also known as "absolute error" What is the correct understanding to absolute error? Select one: O a An absolute error indicates the absolute value of the error. Ob Absolute error is the difference between the measured value and the true value. O e Absolute error indicates that the error is always positive. Od. Absolute eror indicates that the magnitude of an error is certain.arrow_forwardSales delay is the elapsed time between the manufacture of a product and its sale. According an article it is quite common for investigators to model sales delay using a lognormal distribution. For a particular product, the cited article proposes this distribution with parameter values μ = 2.09 and ² = 0.07 (here the unit for delay is months). LUSE SALT (a) What are the variance and standard deviation of delay time? (Round your answers to two decimal places.) months² months variance standard deviation (b) What is the probability that delay time exceeds 12 months? (Round your answer to four decimal places.) (c) What is the probability that delay time is within one standard deviation of its mean value? (Round your answer to four decimal places.)arrow_forwardA person's blood pressure is measured to be: 115 ± 7 mm Hg. What is its percent uncertainty? (Express your answer to the correct number of significant figures and proper units. Use unrounded values in your calculations.)arrow_forward
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