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1.79 Asbestos is a fibrous silicate mineral with remarkably high tensile strength. But it is no longer used because airborne asbestos particles can cause lung cancer. Grunerite, a type of asbestos, has a tensile strength of 3.5x102 kg/mm2 (thus, a strand of grunerite with a 1-mm cross-sectional area can hold up to 3.5x10 kg). The tensile strengths of aluminum and Steel No.5137 are 2.5x10 lb/in? and 5.0x10 lb/in, respectively. Calculate the cross-sectional areas (in mm²) of wires of aluminum and of Steel No. 5137 that have the same tensile strength as a fiber of grunerite with a cross- sectional area of 1.0 um".

1.79 Asbestos is a fibrous silicate mineral with remarkably high tensile strength. But it is no longer used because airborne asbestos particles can cause lung cancer. Grunerite, a type of asbestos, has a tensile strength of 3.5x102 kg/mm2 (thus, a strand of grunerite with a 1-mm cross-sectional area can hold up to 3.5x10 kg). The tensile strengths of aluminum and Steel No.5137 are 2.5x10 lb/in? and 5.0x10 lb/in, respectively. Calculate the cross-sectional areas (in mm²) of wires of aluminum and of Steel No. 5137 that have the same tensile strength as a fiber of grunerite with a cross- sectional area of 1.0 um".

General Chemistry - Standalone book (MindTap Course List)
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter1: Chemistry And Measurement
Section: Chapter Questions
Problem 1.127QP: Some bottles of colorless liquids were being labeled when the technicians accidentally mixed them up...
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(a) Will the ball float if it is evacuated? (b) Will it float if filled with carbon dioxide (d = 1.830 g/L)? (c) Will it float if filled with hydrogen (d = 0.0899 g/L)? (d) Will it float if filled with oxygen (d = 1.330 g/L)? (e) Will it float if filled with nitrogen (d 1.165 g/L)? (f) For any case in which the ball will float, how much weight must be added to make it sink? %D 1.79 Asbestos is a fibrous silicate mineral with remarkably high tensile strength. But it is no longer used because airborne asbestos particles can cause lung cancer. Grunerite, a type of asbestos, has a tensile strength of 3.5x102 kg/mm2 (thus, a strand of grunerite with a 1-mm cross-sectional area can hold up to 3.5x10 kg). The tensile strengths of aluminum and Steel No.5137 are 2.5x10 lb/in? and 5.0x10 lb/in?, respectively. Calculate the cross-sectional areas (in mm²) of wires of aluminum and of Steel No. 5137 that have the same tensile strength as a fiber of grunerite with a cross- sectional area of 1.0 µm“. 1.80 Earth's oceans have an average depth of 3800 m, a total sur- face area of 3.63x10 km², and an average concentration of dis- solved gold of 5.8x10 g/L. (a) How many grams of gold are in the oceans? (b) How many cubic meters of gold are in the oceans? (c) Assuming the price of gold is $1595/troy oz, what is the value of gold in the oceans (1 troy oz = 31.1 g; d of gold = 19.3 g/cm')? %3D 1.81 Brass is an alloy of copper and zinc. Varying the mass per- centages of the two metals produces brasses with different proper- ties. A brass called yellow zinc has high ductility and strength and is 34-37% zinc by mass. (a) Find the mass range (in g) of copper in 185 g of yellow zinc. (b) What is the mass range (in g) of zinc in a sample of yellow zinc that contains 46.5 g of copper? (a) Which show(s) a physical change? (b) Which show(s) a chemical change? (G) Which result(s) in different physical properties? Liquid nit 1.82 erature in °F? s 809 g/L and at chemical properties?
Transcribed Image Text:(a) Will the ball float if it is evacuated? (b) Will it float if filled with carbon dioxide (d = 1.830 g/L)? (c) Will it float if filled with hydrogen (d = 0.0899 g/L)? (d) Will it float if filled with oxygen (d = 1.330 g/L)? (e) Will it float if filled with nitrogen (d 1.165 g/L)? (f) For any case in which the ball will float, how much weight must be added to make it sink? %D 1.79 Asbestos is a fibrous silicate mineral with remarkably high tensile strength. But it is no longer used because airborne asbestos particles can cause lung cancer. Grunerite, a type of asbestos, has a tensile strength of 3.5x102 kg/mm2 (thus, a strand of grunerite with a 1-mm cross-sectional area can hold up to 3.5x10 kg). The tensile strengths of aluminum and Steel No.5137 are 2.5x10 lb/in? and 5.0x10 lb/in?, respectively. Calculate the cross-sectional areas (in mm²) of wires of aluminum and of Steel No. 5137 that have the same tensile strength as a fiber of grunerite with a cross- sectional area of 1.0 µm“. 1.80 Earth's oceans have an average depth of 3800 m, a total sur- face area of 3.63x10 km², and an average concentration of dis- solved gold of 5.8x10 g/L. (a) How many grams of gold are in the oceans? (b) How many cubic meters of gold are in the oceans? (c) Assuming the price of gold is $1595/troy oz, what is the value of gold in the oceans (1 troy oz = 31.1 g; d of gold = 19.3 g/cm')? %3D 1.81 Brass is an alloy of copper and zinc. Varying the mass per- centages of the two metals produces brasses with different proper- ties. A brass called yellow zinc has high ductility and strength and is 34-37% zinc by mass. (a) Find the mass range (in g) of copper in 185 g of yellow zinc. (b) What is the mass range (in g) of zinc in a sample of yellow zinc that contains 46.5 g of copper? (a) Which show(s) a physical change? (b) Which show(s) a chemical change? (G) Which result(s) in different physical properties? Liquid nit 1.82 erature in °F? s 809 g/L and at chemical properties?
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