Physics, 22.10.2019 03:50 soniarosechavez1
Asample of a radioactive isotope of an element contains 60 million atoms and is found to have a decay rate of 8 hundred atoms per year. what is the half-life of the isotope? (give your answer correct to at least two decimal places.)
Answers: 1
Physics, 22.06.2019 09:00
Why can blue light and yellow light combine to produce white light? question 17 options: they are both primary colors of light. they absorb each other's wavelengths. because blue, yellow, and white are primary colors. they are complementary colors of light.
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Physics, 22.06.2019 16:30
In a hydrogen molecule there are a total of four charges, 2 protons in the two nuclei, and 2 electrons. how many unique charge-pairs are there (without double counting)?
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Physics, 22.06.2019 17:30
Alarge cruise ship of mass 7.00 ✕ 107 kg has a speed of 11.6 m/s at some instant. (a) what is the ship's kinetic energy at this time? (b) how much work is required to stop it? (give the work done on the ship. include the sign of the value in your answer.) (c) what is the magnitude of the constant force required to stop it as it undergoes a displacement of 3.00 km?
Answers: 2
Physics, 22.06.2019 23:00
Why does gravity have a lesser than grater effect on higher altitudes?
Answers: 2
Asample of a radioactive isotope of an element contains 60 million atoms and is found to have a deca...
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