The filament in an incandescent light bulb is made from tungsten metal ( d = 19.3 g / c m 3 ) that has been drawn into a very thin wire. The diameter of the wire is difficult to measure directly, so it is sometimes estimated by measuring the mass of a fixed length ofwire. If a 0.200 m length of tungsten wire weighs 42.9 mg, then what is the diameter of the wire? Express your answer in millimeters.
The filament in an incandescent light bulb is made from tungsten metal ( d = 19.3 g / c m 3 ) that has been drawn into a very thin wire. The diameter of the wire is difficult to measure directly, so it is sometimes estimated by measuring the mass of a fixed length ofwire. If a 0.200 m length of tungsten wire weighs 42.9 mg, then what is the diameter of the wire? Express your answer in millimeters.
Solution Summary: The author explains that the diameter of the tungsten wire weighs 42.9mg.
The filament in an incandescent light bulb is made from tungsten metal
(
d
=
19.3
g
/
c
m
3
)
that has been drawn into a very thin wire. The diameter of the wire is difficult to measure directly, so it is sometimes estimated by measuring the mass of a fixed length ofwire. If a 0.200 m length of tungsten wire weighs 42.9 mg, then what is the diameter of the wire? Express your answer in millimeters.
The average micro-nano plastic concentration in bottled water was about 2.4×10^5 particles per liter of bottled water, about 90% of which were nano-sized particles. Assuming that each nanoparticle can be approximated as a sphere with a diameter of 100 nm and that the average density of nanoparticles is 1.2 g/cm^3, estimate the mass of nanoparticles ingested if someone drinks all of their recommended 64 fluid ounces of water per day via bottled water every day for a year. Provide your answer is units of nanograms (ng).
A manufacturer of paint claims that a gallon (3.78L) of latex paint can cover 365 ft2 of the surface of a wall in a single coating. The paint manufacturer also claims that one single coating of an entire wall will be 3.40 mm thick.
Is this a case of false advertising? Yes or No? Elaborate your answer by providing a calculation.
You may use the following conversions: 12 in = 1 ft, 2.54 = 1 in
The equation for density, d , is d=mV where m is mass and V is volume. What is the density, d , of a substance with a volume of V = 23.4 cm3 and a mass of m = 54.3 g ? Express your answer numerically in grams per cubic centimeter.
Chapter 1 Solutions
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Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell