Physics, 12.07.2019 06:00, weeman7760
Fine grains of beach sand are assumed to be spheres of radius 49.8 µm. these grains are made of silicon dioxide which has a density of 2600 kg/m 3 . what is the mass of each grain of sand? answer in units of kg.
Answers: 1
Physics, 22.06.2019 00:40, camco301
Electroplating is a way to coat a complex metal object with a very thin (and hence inexpensive) layer of a precious metal, such as silver or gold. in essence the metal object is made the cathode of an electrolytic cell in which the precious metal cations are dissolved in aqueous solution. suppose a current of 480.ma is passed through an electroplating cell with an aqueous solution of agno3 in the cathode compartment for 46.0 seconds. calculate the mass of pure silver deposited on a metal object made into the cathode of the cell. round your answer to 3 significant digits. also, be sure your answer contains a unit symbol. ×10μ
Answers: 3
Physics, 22.06.2019 03:50, ash011519
The force acting on a beam was measured under the same operating conditions and a sample of 5 data points was collected. this process was repeated by 3 observers. the pooled standard deviations of these 3 data sets was 1.21. determine the true mean force using all pooled data (with a 95% probability). the result should look like this: true mean = mean +/- margin of error
Answers: 1
Physics, 22.06.2019 09:30, kaleahlove13
Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 2 s. what is your acceleration?
Answers: 2
Fine grains of beach sand are assumed to be spheres of radius 49.8 µm. these grains are made of sili...
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