Questions: 1. When you performed Step 2 of the procedure‚ you actually made a cylinder of M&Ms. The cylinder was rather "smushed‚" and the height of the cylinder was the thickness of an M&M. Recall that the equation for the volume of a cylinder is V = (3.14)r2h. A. Rearrange the equation for "h." Show your work.H=v*(3.14)r^2 B. Using the data from Table 1 and your equation‚ calculate the average thickness (height) of an M&M for each trial. Record your calculated values in
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calculate this density‚ we first found the mass of the container that was to be holding the substances. We then found the volume of the substance‚ and lastly determined the mass of the container and substance. We subtracted (Container + Substance) – Container to find the mass of simply the substance. In order to distinguish density‚ we took the final mass divided by the volume‚ and identified the substances based on Density Charts we found online. Originally we hypothesized that we would be able
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The purpose of this experiment is to calculate the thickness of aluminum foil in centimeters. In this lab we measured the thickness by plugging in the quantitative properties of our piece of aluminum foil into the equation for volume and then isolated “h” to solve for height. The thinking behind this method is that by using accurate measurements and proper significant digits we can calculate and accurate thickness. Materials: Electronic Scale
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cylinder (V = r2h) to find the volume of the object. (Note: Be sure to find the radius from the diameter measurement by dividing by 2.) Now suppose you knew the volume of this object and the relation of the height to the radius‚ but did not know the radius. Rewriting the equation with one variable would result in a polynomial equation that you could solve to find the radius. 3. Rewrite the formula using the variable x for the radius. Substitute the value of the volume found in step 2 for V and
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understand Boyle’s Law. In the experiment the pressure in the system under constant temperature and mass was used to confirm if the laws are true. Boyles law relates pressure and volume while all other factors are consistent and states: for a fixed amount of gas kept at constant temp‚ the product of the pressure of the gas and its volume will remain constant if either quantity is changed‚ or where k is constant. The experiment consisted of using a piston‚ or in this case a syringe. Weights were attached to
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Table 2.1: Data of equivalent radius‚ solid density‚ bulk density and porosity of granular materials. nj Red beans Green beans Ground nuts Weight of 400 beans‚ M (kg) 38 22 144 Volume of 400 beans + void spaces‚ V (ml) 48 26 232 Initial reading of cylinder V1 (ml) 300 300 300 Final reading of cylinder V2 (ml) 285 290 210 Volume of void spaces‚ v=v1-v2 (ml) 15 10 90 (V-v) x 10-6 m3 3.3 x 10-5 1.6 x 10-5 1.42 x 10-4 Equivalent radius‚ r (mm) 2.70 x 10-3 2.1216 x 10-3 4.3925 x 10-3 Solid density‚ ρs (kg/m3)
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Question 1 1 out of 1 points The volume of a regular cylinder is V = πr2h. Using the value 3.1416 for the constant π‚ the volume (cm3) of a cylinder of radius 2.34 cm and height 19.91 expressed to the correct number of significant figures is _________. Selected Answer: d. 342 Correct Answer: d. 342 Response Feedback: Correct Question 2 1 out of 1 points There are ____________ significant figures in the answer to the following computation: (29.2 - 20.0 ) (1.79 x 105)
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and creates a platform to discuss the implications of these changes. The four V model: This is a diagram representing the four V model for Beck’s Plc.’s current and previous operations. Low Volume High Low Volume High High Variety Low High Variety Low High Variation Low High
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different measuring tools (graduated cylinder‚ burette & pipette) to evaluate the precision of each one. Results: Density 1‚ 2 & 3 calculated by using graduated cylinder to obtain volume. Density 4‚ 5 & 6 calculated by using volumetric pipette to obtain volume. Density 7‚ 8 & 9 calculated by using burette to obtain volume. All experimental values obtained have been included in this determination. Average density calculated numerically: Average density = sum of all densities divided by total
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Title of the Experiment: determination of densities Introduction The density of a sample of matter represents the mass contained within a unit volume of space in the sample. For most samples‚ a unit volume means 1.0 ml. The units of density‚ therefore‚ are quoted in terms of grams per milliliter (g/ml) or grams per cubic centimeter (g/cm3) for most solid and liquid samples of matter. Density is often used as a point of identification in the determination of an unknown substance. The density
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