Physics

Physics, 09.08.2019 06:10, lauryngrace37

Compare the density, weight, mass, and volume of a pound of gold to a pound of iron on the surface of earth.

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Chemistry, 09.07.2019 16:30, xmanavongrove55

Precious metals and gems are measured in troy weights in the english system: 24 grains = 1 pennyweight (exact) 20 pennyweight = 1 troy ounce (exact) 12 troy ounces = 1 troy pound (exact) 1 grain = 0.0648 g 1 carat = 0.200 g a.the most common english unit of math is the pound avoirdupois. what is 1 troy pound in kilograms and in pounds? b.what is the mass of a troy ounce of gold in gram and in carats? c.the density of gold is 19.3 g/cm 3 . what is the volume of a troy pound of gold?

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Physics, 14.09.2019 08:10, olgapagan1010

A133.7 ft3 volume of liquid hydrogen rocket fuel has a mass of 268 kg. calculate: the weight of the fuel at standard (earth) sea level conditions in n and ibr, the density of the fuel in kg/m3, and the specific volume in ft3/lbm (ibm=pound-mass, which is not the same as a a lbf or a slug)

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Chemistry, 22.10.2019 20:30, angel10999

"which is heavier, a pound of feathers or a pound of lead? " the answer is obvious, of course, since a pound of feathers and a pound of lead both weigh the same—one pound. however, there is clearly something different about a small piece of lead and a large bag of feathers, even though they weigh the same. the relationship between the lead and feathers is expressed by the physical property called density. density is defined as the ratio of a substance’s mass to the volume it occupies. density (g/ml) = mass ( volume (ml) in this laboratory investigation, you will be using the physical property of density to determine the identity of different substances. you will also calculate the percent error, which is a comparison of the differences between the measured value and accepted value. percent error can be determined as follows: % error = ⏐measured value – accepted value⏐ x 100 accepted value objectives when you have completed this activity, you should be able to: observe the chemical and physical properties of substances to interpret the structure of and changes in matter. materials balance metric ruler 100 ml graduated cylinder 250 ml beaker rectangular solid (child’s block) metal sample (fishing weight)

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