A rectangular brick is 208±4mm long, 85 ± 2 mm wide, and 50 ± 2 mm thick, with a mass of 1.73 ± 0.08 kg. What is the relative uncertainty in the volume of the brick? 8 Submit Answer Incorrect. Tries 4/10 Previous Tries Give the volume of the brick and its absolute uncertainty, reporting each to the appropriate number of significant digits. Volume: Submit Answer Tries 0/10 Absolute uncertainty: 2.5*10^(-7) Submit Answer Units required. Tries 0/10 Previous Tries What is the density of the brick and its uncertainty? Density: 2.0x10³ kg/m^3 You are correct. Your receipt no. is 152-9001 Absolute uncertainty: 2.5*10^(-7)kg/mm^3 Submit Answer Submission not graded. Use fewer significant figures. Tries 1/10 Previous Tries Previous Tries

A rectangular brick is 208±4mm long, 85 ± 2 mm wide, and 50 ± 2 mm thick, with a mass of 1.73 ± 0.08 kg. What is the relative uncertainty in the volume of the brick? 8 Submit Answer Incorrect. Tries 4/10 Previous Tries Give the volume of the brick and its absolute uncertainty, reporting each to the appropriate number of significant digits. Volume: Submit Answer Tries 0/10 Absolute uncertainty: 2.510^(-7) Submit Answer Units required. Tries 0/10 Previous Tries What is the density of the brick and its uncertainty? Density: 2.0x10³ kg/m^3 You are correct. Your receipt no. is 152-9001 Absolute uncertainty: 2.510^(-7)kg/mm^3 Submit Answer Submission not graded. Use fewer significant figures. Tries 1/10 Previous Tries Previous Tries

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter1: Units And Measurement

Section: Chapter Questions

Problem 83AP: A marathon runner completes a 42.188-km course in 2 h, 30 min, and 12s. There is an uncertainty of...

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When nonmetric units we used in the United Kingdom, a unit of mass called the pound-mass (lbm) was used, where 1 lbm = 0.4539 kg. (a) If there is an uncertainty of 0.0001 kg in the pound-mass unit, what is its percent uncertainty? (b) Based on that percent uncertainty, what mass in pound-mass has an uncertainty of 1 kg when converted to kilograms?
A marathon runner completes a 42.188-km course in 2 h, 30 min, and 12s. There is an uncertainty of 25 m in the distance traveled and an uncertainty of 1 s in the elapsed time. (a) Calculate the percent uncertainty in the distance. (b) Calculate the percent uncertainty in the elapsed time. (C) What is the average speed in meters per second? (d) What is the uncertainty in the average speed?
The radius of a circle is measured to be (10.5 0.2) m. Calculate (a) the area and (b) the circumference of the circle, and give the uncertainty in each value.
A calculator displays a result as 1.365 218 0 X 107 kg. The estimated uncertainty in the result is 2%. How many digits should be included as significant when the result is written down? (a) zero (b) one (c) two (d) three (e) four
State how many significant figures are proper in the results of the following calculations: (a) (106.7)(98.2)/(46.210)(1.01) (b) (18.7)2 (c) (1.601019)(3712)
(a) If your speedometer has an uncertainty of 2.0 km/h at a speed of 90 km/h, what is the percent uncertainty? (b) If it has the same percent uncertainty when it reads 60 km/h, what is the range of speeds you could be going?
When non-metric units were used in the United Kingdom, a unit of mass called the pound-mass (lbm) was employed, where 1 lbm = 0.4539 kg. (a) If there is an uncertainty of 0.0001 kg in the pound-mass unit, what is its percent uncertainty? (b) Based on that percent uncertainty, what mass in pound-mass has an uncertainty of 1 kg when converted to kilograms?
(a) A person's blood pressure is measured to be 1202 mm Hg. What is its percent uncertainty? (b) Assuming the same percent uncertainty, what is the uncertainty in a blood pressure measurement of 80 mm Hg?
What is the density of vibranium with a mass of 186.000 ± 0.004 g and a volume of 120.00 ± 0.02 mL? (answer using 6 significant digits) What is the absolute uncertainty of the density of vibranium with a mass of 186.000 ± 0.004 g and a volume of 120.00 ± 0.02 mL?(answer with two significant digits)
What is the area, and its approximate uncertainty, of a circle of radius 3.1 X 104 cm?
What is the percent uncertainty in the volume of a cylinder whose diameter is 3.6 × 10^4 cm and length 25.3 × 10^4 cm?
1. Find the percent uncertainty of 300±5 cm. How will you write the value of the measurement? 2. How do you write the following numbers in scientific notation or power of ten notation? a. 0.000123 b. 3,141,600,000 c. 1,005,000 d. 0.000000007 e. 100,000,000 3. Determine the number of significant figures in the following measurements. a. 0.00624 b. 300.1 c. 62,000.00 d. 1.0100 e. 10.01 4. Convert the following measurements to the mks(m-kg-s) system of units. a. 20 g/cm3 b. 100 km/hr c. 980 cm/s2 d. 0.5 kg/cm 5. Using dimensional analysis, check which of the following equations is or are correct. a. d = (1/2)at b. mgh = (1/2)mv2 c. a = v2/t