The radius of an approximately spherical nucleus is given by r =
a. r0Z3.
b. r0Z1/3.
c. r0A3.
d. r0A1/3.
e. r0(A ? Z)1/3.
d
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LC Circuits: A series circuit contains an 80-?F capacitor, a 0.020-H inductor, and a switch. The resistance of the circuit is negligible. Initially, the switch is open, the capacitor voltage is 50 V, and the current in the inductor is zero. At time t = 0 s, the switch is closed. When the current in the circuit is 1.5 A, what is the charge on the capacitor?
A. 2000 µC B. 2500 µC C. 3000 µC D. 3500 µC E. 4000 µC
Two neutron stars in a close binary are predicted to spiral into each other and eventually merge because they lose orbital energy through
A) the emission of gravitational waves. B) strong x-ray emission of their accretion disks. C) friction as they orbit through the gas of a surrounding accretion disk. D) the exchange of mass from one to the other.
In quantum tunneling, electrons and other quantum particles can tunnel through a region of space that would be forbidden to them if they were classical particles
Indicate whether the statement is true or false
The Maxwell velocity distribution indicates that