Question 12: Most nitrogen atoms have a mass of 14u (hence 28u for N2), but a small percentage of nitrogen atoms have an extra neutron and thus an atomic mass of 15u. (We refer to atoms of the same element but with different masses as isotopes of that element.) Recently, scientists studying isotope data from the Cassini spacecraft have noticed that
the ratio of 15u nitrogen to 14u nitrogen is much larger than it is here on earth. Assuming
that Titan and the earth originally had the same isotope ratios, explain why the ratios might be different today.
Answers: 1
Physics, 21.06.2019 17:20
The specific heat of silver is 0.057 calories/gram°c. if 10.0 grams of silver were heated and the temperature of the sample changed by 20.0°c, how many calories of heat energy were absorbed by the sample?
Answers: 1
Physics, 21.06.2019 17:20
Write maxwell's equations and discuss the terms involved and the results of each equation in classical electrodynamics. if it is possible to write these equations in integral form, give the integral forms. find the wave equation for electromagnetic waves from the maxwell equations. what is the propagation velocity of electromagnetic waves in space according to the wave equation you find?
Answers: 3
Physics, 21.06.2019 22:30
The percent efficiency of a machine can never be 100% (or greater), because in the real world some energy is always converted into a. heat b. work c. input force d. output force
Answers: 1
Physics, 22.06.2019 12:30
What is the power rating of the lightbulb if 3.0 a flow through it when connected to a 15 v battery
Answers: 1
Question 12: Most nitrogen atoms have a mass of 14u (hence 28u for N2), but a small percentage of ni...
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