Is the following decay allowed? ?° ? ?+ + v?
A)
Yes.
B)
No, because charge is not conserved.
C)
No, because mass is created.
D)
No, because lepton number is not conserved.
B
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An absorption spectrum is created when blackbody radiation passes through a cool gas
a. True b. False Indicate whether the statement is true or false
If we are directly in the line of a jet coming out of the lobe galaxy's core, we see a:
A) hypernovae. B) pulsar. C) quasar. D) blazar. E) magnetar.
The gravitational force, the electromagnetic force, and the strong nuclear force are ______ range,_______ range, and _______ range, respectively.
A. short, long, long B. short, short, long C. short, short, short D. long, short, short E. long, long, short
The white-hot sparks from a 4th-of-July-type sparkler that strike your skin transfer
A) little energy to you in spite of their high temperature. B) little energy to you due to their low temperature. C) much energy, but at a low temperature. D) none of the above