suppose you measure the density of a material and find it to be 3.1 g/cm3 with an uncertainty of 0.1 g/cm3. (The uncertainty may arise from an uncertainty built into the scale.
From this measurement, what can you claim about the identify of the material?
suppose you measure the density of a material and find it to be 3.1 g/cm3 with...
I) You want to find the volume of a mtal sphare (Note: the formula for the volume of a sphere is V--πr. where r is the radius of the sphere). You measure the radius of the sphere to be r-2.18 cm, with a measurement uncertainty of± 0.02 cm. What is the volume of the sphere as well as the corresponding uncertainty of the calculated volume? 2) You measure the mass of the same sphere used in qesio, and find that...
Suppose you measured the mass and volume of a piece of material you think is gold. You calculate the density to be 18.6 ± 4 g/cm3. The accepted density of gold is 19.3 g/cm3. Calculate the percent error in your measurement. (You are allowed to keep 2 digits in the answer).
PRE-LAB Questions: 1) You use a force sensor to measure the weight of an object 10 times, and get the following values: 2.8, 2.6, 2.9, 3.1, 2.4, 2.9, 3.2, 2.5, 2.7, 3.0, where all ten values are in units of N. What is the mean weight of the object, as well as the measurement uncertainty of the weight? 2) You measure the mass of the object from question 1 to be m = 300.8 g with an uncertainty of ±...
3) Yellow pine has a mass density of 0.55 g/cm3. Suppose you have a wooden yellow pine cylinder with a volume of 8.3 cm3 . A) What is the mass of the cylinder? B) What is the weight of the cylinder (the force due to gravity)? C) If you immerse the cylinder in water, what will the buoyant force on it be? D) What do your results from parts B and C imply?
Assuming that water has a density of exactly 1.00 g/cm3, find the mass of one cubic meter of water in kilograms. Suppose that it takes takes 8.0 h to drain a container of 7430 m3 of water. What is the "mass flow rate", in kilograms per second, of water from the container?
Error Propagation and Density of Materials
I need you to finish the two columns(Don't worry about the
third) in the table using the formulas in page one. Please show
work
3) Use the Vernier caliper to measure the height, h, and the diameter, D, of the cylinder. Record h and D and their uncertainties, Ah and AD. 4) the graduated cylinder Use metal. the determine of to the volume how would you do this? Analysis The density of a sample...
An ethanol-water solution is 40.00% ethanol by mass and has a density of 0.9450 (g/cm3) at 25.00°C. The density of pure ethanol is 0.7850 (g/cm3) and the density of pure water is 0.9970(g/cm3) at this temperature. At these conditions, the partial molar volume of ethanol is 55.00 (cm3/mol) and the partial molar volume of water is 17.5 (cm3/mol). a. Calculate the total volume of a 1000.0 g solution assuming both ideal and non-ideal conditions. b. What does the difference between...
Problem 1 (About uncertainty in addition and subtraction) You are trying to measure the height of a table using a 30-cm ruler. Since the ruler is not long enough, you do the measurement on 3 steps and you obtain the following results di = 30.0 +0.1 cm dz = 30.0 + 0.1 cm dz = 16.6 + 0.1 cm What is the total height of the table, di + d2 + dz?
Suppose you measure the radius of the cylinder five times: 3.1 cm, 3.3cm, 3.2 cm, 3.3 cm, and 3.4 cm. the height of the cylinder was: 5.5 cm, 5.5 cm, 5.7 cm, 5.6 cm, and 5.7 cm. (1) find the uncertainty of radius and height. (note: you have to find out the average for the radius and height first along with its uncertainties, alpha =sqrt((sigma(xi-x)^2)/(n-1)) (2) find the percentage uncertainties of radius and height. Also expressed the radius and height...
A stainless steel ball (radius rsphere = 0.3175 cm, density ρsphere = 7.866 g/cm3) falls through a viscous fluid (density ρfluid = 1.2 g/cm3) and quickly reaches terminal speed v. You measure the ball’s position as a function of time to find v. The ball is at positions y = 10 cm at time 2.402 and at position y = 5 cm at time 3.26. Calculate the viscosity η of the fluid in units of poise = g/(cm-s), using your...