Is it ever possible for the following process to occur?
? ? (e+) + (e-) + (e+)
A) Yes, it is.
B) No, this process does not conserve energy.
C) No, this process does not conserve momentum.
D) No, this process does not conserve mass.
E) No, this process does not conserve electric charge.
E) No, this process does not conserve electric charge.
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Which of the following cannot travel in a vacuum?
A) a light wave B) a sound wave C) a radio wave D) all can E) none can
Breaks in the geologic record that result from
locally unrecorded intervals of depositing in sedimentary layers are called a)anticlines. b)intrusive sills. c)unconformities. d)warped or folded time.
State Pascal's Principle
What will be an ideal response?
Batter up! Your bat hits the ball pitched to you with a 1500-N instantaneous force. The ball hits the bat with an instantaneous force, whose magnitude is
A) somewhat less than 1500 N. B) exactly equal to 1500 N. C) essentially zero. D) somewhat greater than 1500 N.