Answer:
C. 98 J
Explanation:
The appropriate formula is ...
PE = mgh . . . . . m is mass; below, m is meters
PE = (5 kg)(9.8 m/s^2)(2 m) = 98 kg·m^2/s^2
PE = 98 J
Each shell can contain only a fixed number of electrons: The first shell can hold up to two electrons, the second shell can hold up to eight (2 + 6) electrons, the third shell can hold up to 18 (2 + 6 + 10) and so on. The general formula is that the nth shell can in principle hold up to 2(n2<span>) electrons.</span>
Answer:
D. gravitational potential energy
Explanation:
Excited
state is the name of the state when electrons absorb energy and move to
a higher energy level.
<span>In quantum mechanics, an </span>excited state<span> of
a system (such as an atom, molecule or nucleus) is any quantum</span>state<span> of
the system that has a higher energy than the ground </span>state<span> (that is, more energy than the
absolute minimum).</span>
The correct answer between all
the choices given is the second choice or letter B. I am hoping that this
answer has satisfied your query and it will be able to help you in your
endeavor, and if you would like, feel free to ask another question.