What we call the Metric System is properly called the Systeme Internationale, an

Question

What we call the Metric System is properly called the Systeme Internationale, and used to be called the MKS system, for Meter, Kilogram, and Second. Which scientist(s) assumed that these three measurements-distance, mass, and time-were fundamental and unchanging? a. Einstein b. Newtorn c. Both Einstein and Newton. d. Neither Einstein nor Newton. Which scientist(s) instead asserted that the speed of light is the fundamental, unchanging constant of the universe? a. Einstein b. Newton c. Both Einstein and Newton. d. Neither Einstein nor Newton. In class in the PowerPoint show on Special Relativity I showed this representation of a proton from outer space entering the field at the top right smashing into the nucleus of an atom in the air, and creating a shower of new particles. Where do they come from? They are a. formed the kinetic energy of the incoming proton. b. knocked loose from inside the atom by the impact. c. broken fragments of the atom that was struck. Most of the particles produced in the collision instantly decay away, but many muons, represented by the bold, straight lines, continue on and strike us. Muons are like nature's clocks, and they decay into harmless electrons in only 2.2 microseconds (2.2 mu s), which should happen high above our heads. We say that for the speeding muons, time slows down, so they last longer and reach us. What would we say from the muons' point of view? Let's imagine that the muons could tell us! The muons would say that a. they lived longer, in agreement with what we said, and that's why they reached us. b. for them, time was normal, they lived only 22 mu s but the distance to us was compressed or shortened, and that's why they reached us. c. high energy muons behave differently than slow muons, and different rules of physics apply, d. they actually would decay high above us and not reach us at all. Who are we to edit Einstein's work? But his famous equation E = mc^2 could be better written as a. E = mu_0epsilon_0m b. E = m/mu_0epsilon_0 c. E = m/ (mu_0epsilon_0) d. E = m/(mu_0epsilon_0)^2

Explanation / Answer

No individual scientist assumed distance,mass and time as fundamental units

In General conference on weights and measures (CGPM) hepld in different years decided these quantities as the fundamental quantities

so the answer is d) Neither Einestein or Newton

so the same answer is applicable to 13) also

so the answer for 13) is D) neither Einstein or Newton

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