2. When calculating the density p and uncertainty of the copper block Ap, the calculator shows "8.35256" and "0.06532" respectively. The result should be represented as: ( ) (A) p (8.35256 ± 0.0653) (gcm³) (B) p= (8.352 ± 0.065) (gcm³) (C) p = (8.35 0.07) (gcm ³ ) (D) p (8.35256 ± 0.06532) (gcm -³)

2. When calculating the density p and uncertainty of the copper block Ap, the calculator shows "8.35256" and "0.06532" respectively. The result should be represented as: ( ) (A) p (8.35256 ± 0.0653) (gcm³) (B) p= (8.352 ± 0.065) (gcm³) (C) p = (8.35 0.07) (gcm ³ ) (D) p (8.35256 ± 0.06532) (gcm -³)

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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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?
(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?
With a caliper (Δr=0.05 mm), the edge L of a pure copper plate is measured only once. The value read by the experimenter is L=10.00 mm. It is known that the density of copper is ρ=(8.8900±0.0058)×103 kg/m3. What is the mass of the cube with its uncertainty? a) m ± um = (8.890 ± 0.078) g b) m ± um = (8.890 ± 0.078) kg c) m ± um = (8.890 ± 0.078)×10-3 g d) m ± um = (8.90 ± 0.078) g e) m ± um = (8.90 ± 0.08) g
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a) A simple spring is used to measure force. The spring is considered to be linear, so the F = kx, where F is the force in Newton, k is the spring constant in Newton per centimeter, and x is displacement in cm. If x = 20.0 ± 1.25 cm andk 800 ± 16 N/cm, %3D calculate the maximum possible error and the uncertainty of the measured force in absolute (dimensional) and relative (%) terms.
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68. Alveoli are tiny sacs of air in the lungs. Their average diameter is 5.20×10−5 m. Calculate the uncertainty in the velocity of an oxygen molecule (5.30×10−26 kg) trapped within a sac. Enter your answer in scientific notation. (Hint: The maximum uncertainty in the position of the molecule is given by the diameter of the sac.)
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