Which of these are fundamental physical quantities?
a. space, time, and matter
b. kilograms, seconds, and meters
c. length, time, and mass
d. momentum, energy, and mass
C
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The ratio of the final kinetic energy to the initial kinetic energy of an object is one half. If the initial velocity of the object is 10 m/s, what is the final velocity?
A) 20 m/s B) 10 m/s C) 7.1 m/s D) 2.7 m/s E) 1.5 m/s
A proton and an antiproton each with total energy of 400 GeV collide head-on. What is the total energy (particles + energy) released?
a. zero b. 400 Gev c. 800 GeV d. 1 600 GeV e. 2 400 GeV
The imaginary, huge, apparently moving sphere on which the stars appear to be mounted is called the _______________ sphere
a. celestial b. global c. universal d. galactic
A K? x-ray corresponds to the missing electron orbital on an atom going from 1s to _________.
Fill in the blank(s) with the appropriate word(s).