Elastic potential energy is kind of like pulling on something and then letting it go, with rubber bands, or a bow, or a slingshot, something with elastic properties.
Gravitational potential energy has to do with how high something is, and has to do with earth’s gravitational pull.
Answer:

Explanation:
Given that,
Wavelength, 
We need to find the frequency of the violet light.
We know that the relation between frequency and wavelength is given by :

So, the frequency of violet light is
.
A mirror is opaque you can not see through it but you can see a reflection within it
Answer: D
Explanation: :) Just took the quizz
Formulated in the 1980s by Robert Sternberg<span>, the </span>triarchic theory<span> distinguishes three aspects of </span>intelligence<span>: analytic skills, such as the ability to think abstractly and evaluate </span>information<span>; creativity, the ability to invent novel solutions or ideas; and practical skills, which enable one to cope with concrete ...</span>