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 8ASA
To determine
The method by which the volume of a heavy irregular shaped object can be determined.
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Students have asked these similar questions
The Earth has a diameter of approximately 12742 km and a
mass of approximately 5.972 × 1024 kg. Assuming the Earth to
be a sphere and approximately made from a unifom material,
find the average density of the Earth. (State your answer to an
appropriate number of significant figures.)
(a) 6.467x105 kg m³
(b) 5.513x1012 kg m³
High confidence level
|Low confidence level
(d) 689.2 kg m³
Sample you are using is Tin
1.Calculation of density of cylindrical objectMass of cylindrical object with hook 35.943 gMass of hook1.250 gMass of cylinder without hook Volume of cylinder without hook Density of your object (without hook) Density of metal given in Table 1 g cm3 g/cm3 g/cm3Percent error of your density determination((exp erimental value theoretica l value) x100 % errortheoretica l value
Table 1. Densities of several substancesSymbol on bottom of cylinderMetalDensity (g/cm3)CCopper8.92AAluminum2.70TTin7.28ZZinc7.14SSteel7.83
The volume of liquid flowing per second is called the volume
flow rate Q and has the dimensions of [L][T]. The flow rate of a
liquid through a hypodermic needle during an injection can be estimated
60.
with the following equation:
TR"(P2 – P,)
8nL
The length and radius of the needle are L and R, respectively, both of
which have the dimension [L]. The pressures at opposite ends of the nee-
dle are P, and P,, both of which have the dimensions of [M]/{[L][T]*}.
The symbol 7 represents the viscosity of the liquid and has the dimen-
sions of [M]/{[L][T]}. The symbol 7 stands for pi and, like the number 8
and the exponent n, has no dimensions. Using dimensional analysis, de-
lermine the value of n in the expression for Q.
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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