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 3Q
To determine
Whether the error caused by the air bubbles sticking to the surface of the irregularly shaped body in the volume measurement gives the experimental density that is too high or too low.
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01. From the data obtained by a group of students below, compute the experimental density
of the material and compare it with the accepted value by computing the percentage
error. The material is of copper with a standard density of 8.9 g/cm3. Fill up the table in
the answer sheet completely.
Solid Object
Dimensions
Mass
Cylinder
D = 3.25 cm; h = 6.48 cm
464 g
(V= ¶02h/4)
The accepted value of the density of aluminum at standard temperature and pressure is 2.70 g/cm³ What is the discrepancy
between the accepted density and your experimental density in g/cm²?
Is this
discrepancy significant?
QUESTION 9
The accepted value of the density of aluminum is 2.70 g/cm³ while our computed value is 2.8 g/cm³ What is the percent
uncertainty of our experimental density (observing correct significant figures)?
a. 0.037
Ob.37
c.3.70
d.4
0.5 poin
Please answer this. I will surely upvote!!!
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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- Please answer this. I will surely upvote!!!arrow_forwardSample 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)CCopper8.92AAluminum2.70TTin7.28ZZinc7.14SSteel7.83arrow_forwardA piece of silver weighing 685g in air weighs 437g when immersed in glycerine whose SG is 1.25. Solve for the cc of the cavity inside the silver. Round your answer to 2 decimal places.arrow_forward
- Although aluminum foil is very thin, it does have some thickness. We cannot typically “measure” the thickness ofsuch a thin object directly, but the thickness can be determined “indirectly”. Assume that the density of aluminum is2.70 g/cm3 and that the shape of the square aluminum foil is a rectangular cuboid. Then by using the experimental data of the length of the aluminum square 5.10cm, Width is 5.00cm and the mass of aluminum is 0.11g. Determine the thickness of aluminum foil in micrometers. Show your work.arrow_forwardPlease answer this, I need help.arrow_forward1. An experiment is carried out for liquid of density, p and viscosity, µ which flows freely under the influence of gravitational acceleration, g through a hole of diameter, d at the bottom of a tank of diameter, D as shown in Fig. Q1. At the start of the experiment, the liquid surface is at height, h above the bottom of the tank. a) Deduce a dimensionless relationship for time taken to empty the liquid, T as a function of the other mentioned parameters in the experiment. (Use repeating parameter method with p, h and g as the repeating parameters.) b) Ethylene glycol (v = 4.75×10° m²/s) was initialy to be experimented with the same apparatus but was canceled due to the overly high cost to purchase ethylene glycol. With the help of dimensional anaysis, one can run the experiment by using a smaller appartus and with water in place of ethylene glycol. A smaller apparuts is thus built to quarter of the original experimental setup for that purpose. Determine the temperature of water in…arrow_forward
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- SELECT MANY THAT BEST APPLIES: Calculate the volume (in m3) of helium needed in a hot air balloon to lift at least 100 kg of load. Density of He = 0.179 kg/m3, density of air = 1.29 kg/m3 (Ans: 90) To solve the problem, which of the following equation/s can be use (check as many that best applies)arrow_forwardG01arrow_forwardIf it is known that each plot of the inspection screen on the drawing is 1 mm in size. Then a drop oil takes 3 seconds to pass 1 plot. The density of the oil is known, the viscosity of air, and the density of air respectively are 920 kg/m3; 1.85×10-5 Ns/m2; and 1,184 kg/m3. Determine the radius of the oil drop! (Note: voltage source off).arrow_forward
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