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Physics, 22.06.2019 05:00
Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesn’t, as machines are inefficient. d) no, it doesn’t, as machines cannot create energy.
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Physics, 22.06.2019 18:00
The protons in a nucleus are approximately 2 ✕ 10^−15 m apart. consider the case where the protons are a distance d = 1.93 ✕ 10^−15 m apart. calculate the magnitude of the electric force (in n) between two protons at this distance.
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Physics, 23.06.2019 07:30
Based on the image below what would an observer on the nighttime side of earth observe?
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Physics, 23.06.2019 09:00
1,990,000,000,000,000,000,000,000,000,000 in scientific notation
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How is the number 15,000 written in scientific notation...
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