An electron and a proton are each released from rest in the same uniform electric field. The electron moves a distance delectron and the proton moves a distance dproton as each particle's kinetic energy increases by 1.6 eV. How do delectron and dproton compare?
a. delectron > dproton
b. delectron = dproton
c. delectron < dproton
d. The answer depends on the direction of the electric field.
B
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Which of the following statements about stages of nuclear burning (i.e., first-stage hydrogen burning, second-stage helium burning, etc.) in a massive star is not true?
A) Each successive stage of fusion requires higher temperatures than the previous stages. B) As each stage ends, the core shrinks further. C) Each successive stage creates an element with a higher atomic weight. D) Each successive stage lasts for approximately the same amount of time.
The Sun traces a path along the ecliptic in a period that is longer than 365 days
a. True b. False Indicate whether the statement is true or false
Consider 550. nm light passing through 2 narrow slits 2.10 micro-meters apart. The 1st and 2nd order fringes are 1.00 mm apart on a distant screen. How far apart are the 2nd and 3rd order fringes?
A) 1.35 mm B) 1.00 mm C) 0.750 mm D) 0.500 mm E) 1.74 mm
Which period of Mars's planetary history has been the most uneventful?
a. Mesozoic b. Noachian c. Amazonian d. Jurassic e. Hesperian