Changing the positive direction in a reference frame to the opposite direction does not change the sign of which of the following quantities?
a. velocity
c. speed
b. average velocity
d. displacement
C
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An electron and a positron, each having kinetic energy 1.843 GeV, annihilate, producing a proton and antiproton pair (M = 938.3 MeV/c2). What is the kinetic energy of the antiproton produced in this way?
A. 0.938 GeV B. 0.905 GeV C. 1.586 GeV D. 1.843 GeV
If a body were in orbit very near the surface of the Earth, its centripetal acceleration would be
a. equal to g. b. smaller than g. c. larger than g. d. dependent on its mass. e. none of the above.
The gauge pressure of the water in a swimming pool at 10 ft is __________ the gauge pressure of the water at 5 ft
Fill in the blank(s) with correct word
Organisms that are found living kilometers beneath Earth's crust are referred to as
A) asthenophiles B) magmaphiles C) sublithophiles D) endoliths