After four half-lives, the surviving tritium atoms are removed. Compared to completely new tritium atoms, they are expected to live
A. 1 /8 as long
B. 1/4 as long
C. 1 /2 has long
D. exactly as long
Answer: D. exactly as long
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A) The Cretaceous Period B) The Carboniferous Period C) The Cambrian Period D) The Archaean Eon
An uncharged spherical conducting shell surrounds a charge -q at the center of the shell. The charges on the inner and outer surfaces of the shell are respectively
a. -q, -q. b. -q, +q. c. +q, -q. d. +q, +q. e. +q, 0.
When it is struck by 240-nm photons, a material having a work function of 2.60 eV emits electrons
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Briefly state the uncertainty principle
What will be an ideal response?