A piece of copper whose density is 8.93 g/cm3 has a mass of 180 g in air and 162 g when submerged in a certain liquid. What is the mass density of the liquid?What is the mass of one liter of methyl alcohol whose density is 190 kg/m3. What is its weight?When placed in a pycnometer, 20 g of salt displaces 7.6 g of kerosene. If the mass density of kerosene is 0.83 g/cm3, find the volume and density of the salt.An irregular metallic solid has a mass of 35 g. If its length is 10 cm, its width 8 cm, and its thickness 5 cm, what is the mass density of the metal?A thin sheet of gold foil has an area of 3.05 cm2 and a mass of 6.3 mg. How thick is the foil? The mass density of gold is 19,300 kg/m3.A 60 mL flask is filled with mercury at 00C. When the temperature rises to 800C, 1.47 g of mercury spills out of the flask. Assuming the volume of the flask is constant, find the density of mercury at 800C if its density at 00C is 13,645 kg/m3.When equal masses of two substances are mixed, the resultant density is 2.5 g/cm3. When equal volumes are mixed, the resultant density is 4.5 g/cm3. What are the densities of the two substances?A nurse applies a force of 45 N to a syringe with a fluid inside. The diameter of the syringe piston measures 1.15 cm. By how much is the pressure in the fluid increased due to the applied force?Water from a spring is carried through a pipe of length 100 m down a hill inclined at 200 to the horizontal. When the pipe is full but water is not flowing, what is the pressure at the lower end of the pipe?Three children each having a mass of 37.4 kg make a log raft by lashing together logs of diameter 32 cm and length 1.77 m. How many logs will be needed to keep them afloat? Take the density of the wood to be 0.75 X 103 kg/m.

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College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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A piece of copper whose density is 8.93 g/cm³ has a mass of 180 g in air and 162 g when submerged in a certain liquid. What is the mass density of the liquid?

What is the mass of one liter of methyl alcohol whose density is 190 kg/m³. What is its weight?
When placed in a pycnometer, 20 g of salt displaces 7.6 g of kerosene. If the mass density of kerosene is 0.83 g/cm³, find the volume and density of the salt.
An irregular metallic solid has a mass of 35 g. If its length is 10 cm, its width 8 cm, and its thickness 5 cm, what is the mass density of the metal?
A thin sheet of gold foil has an area of 3.05 cm2 and a mass of 6.3 mg. How thick is the foil? The mass density of gold is 19,300 kg/m³.
A 60 mL flask is filled with mercury at 0⁰C. When the temperature rises to 80⁰C, 1.47 g of mercury spills out of the flask. Assuming the volume of the flask is constant, find the density of mercury at 80⁰C if its density at 0⁰C is 13,645 kg/m³.
When equal masses of two substances are mixed, the resultant density is 2.5 g/cm³. When equal volumes are mixed, the resultant density is 4.5 g/cm³. What are the densities of the two substances?
A nurse applies a force of 45 N to a syringe with a fluid inside. The diameter of the syringe piston measures 1.15 cm. By how much is the pressure in the fluid increased due to the applied force?
Water from a spring is carried through a pipe of length 100 m down a hill inclined at 20⁰ to the horizontal. When the pipe is full but water is not flowing, what is the pressure at the lower end of the pipe?
Three children each having a mass of 37.4 kg make a log raft by lashing together logs of diameter 32 cm and length 1.77 m. How many logs will be needed to keep them afloat? Take the density of the wood to be 0.75 X 10³ kg/m.

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