Which one of the following is the correct expression for electric current?
A) I = ?C/?t
B) I = ?R/?t
C) I = ?V/?t
D) I = ?Q/?t
E) None of the other answers is correct.
D
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Fill in the blank(s) with correct word
How is the existence of Earth's unique atmosphere explained?
A) The oxygen in Earth's atmosphere is a result of early life on Earth. B) Volcanic gases containing nitrogen were outgassed from Earth's interior. C) As Earth cooled, water vapor fell out of the atmosphere to form the oceans. D) Ultraviolet radiation from the Sun freed the hydrogen, allowing it to escape. E) When Earth formed, its atmosphere formed from the gases most common in the early solar system.
A steel rod with an elastic modulus of
In ?- decay, the number of protons in the nucleus is
A) decreased by 1. B) decreased by 2. C) increased by 1. D) increased by 2. E) remains unchanged.