The original nucleus and the final nucleus will be different isotopes of the same element for which decay scheme of the original nucleus?
a. a beta (electron) decay followed by an alpha decay
b. a beta (electron) decay followed by neutron emission
c. alpha decay followed by two beta (electron) decays
d. two gamma decays
C
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Why is the sky blue (on Earth)?
A) because molecules scatter blue light more effectively than red light B) because the Sun emits mostly blue light C) because molecules scatter red light more effectively than blue light D) because deep space is blue in color E) No one knows; this is one of the great mysteries of science.
Europa is one of the most promising of the bodies in the outer solar system for life in its salty seas
Indicate whether the statement is true or false
A 120-V circuit has a breaker rated at 10 amps. If a 1050-W toaster is operating on this circuit, what is the largest number of 100-W bulbs that may also operate simultaneously on this circuit without tripping the breaker?
1.0 2.1 3.2 4.more than 2
The direction of the electric field halfway between an electron and a proton is
A) undefined since the electric field is zero. B) directed toward the proton. C) directed toward the electron. D) perpendicular to the line from the electron to the proton. E) cannot be determined.