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Physics, 21.06.2019 23:30, Gabysh3794
Aknife blade is a(n) a. lever b. screw c. wedge d. inclined plane
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Physics, 22.06.2019 10:00, lorelei7668
(a) calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10.0 g. silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) imagine adding electrons to the pin until the negative charge has the very large value 1.00 mc. how many electrons are added for every 109 electrons already present
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Physics, 23.06.2019 13:40, leilalony2660
Cereal plants gain chemical potential energy as they grow. which form of energy is converted to create the chemical potential energy?
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Physics, 23.06.2019 21:40, starsinopoli13
Chemical energy sources are often portable and provide large amounts of energy. fossil fuels are one kind of chemical energy source. most of the energy we use in the united states is generated by the combustion of fossil fuels. however, fossil fuel combustion adds greenhouse gases to the atmosphere, mostly co2. one measure of the total amount of greenhouse gases that are emitted into the atmosphere each year is called a carbon footprint. read this article to compare the carbon footprint of an average person in the united states to an average person around the world. knowing that greenhouse gases are contributing to climate change, how can we reduce our carbon footprint, particularly in the united states? could hydrogen fuel replace fossil fuels in the future? why or why not? should the size of a person’s carbon footprint be limited by law? why or why not?
Answers: 2
What type of reaction is shown below? 2Li + F2 -> 2LIF...
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