Can two pool balls, both of them moving, have a total momentum of zero?
A) No, because any moving object has momentum.
B) No, because they both have energy.
C) Yes, if they are moving in opposite directions, both with the same speed.
D) Yes, but only at the instant that they collide.
E) Yes, if they are both moving outward from the same point.
C
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When considering light as made up of individual "pieces," each characterized by a particular amount of energy, the pieces are called
A) photons. B) wavicles. C) gamma rays. D) frequencies.
Electrons in atoms move about the nucleus in well-defined circular orbits
a. True b. False Indicate whether the statement is true or false
Voltage is the force on a charged object divided by the charge on the object
Indicate whether the statement is true or false
Isotopes of the element named ______________ probably will be the fuel for the first commercial fusion reactors
Fill in the blank(s) with correct word