The objects that produce large amplitude waves are Stars, Large machines, Rocks falling from the mountain, Earthquakes, Volcanoes
The objects producing small amplitude waves include ping-pong ball, Tuning fork, stones, Speakers, Spring
<u>Explanation</u>:
The wave's amplitude is characterised by the ultimate displacement of an object from its median position. Generally, wave with high energy (or the waves emanating from big bodies or high energy bodies) are high amplitude waves. Since the body has a high amount of energy, it produces a comparatively large amount of displacement of the particle. hence the high amplitude.
Similarly, small bodies or bodies with less energy produces a low amplitude wave. This also can be understood in terms of displacement of the particle from its mean position.
A foil is the near complete opposite of the main character (whichever character they want you to find a foil for).
Rainsford and Whitney were good hunting friends with numerous similar interests. They could not be foils because of how close in similarity they were. Even when they disagreed on how animals felt about being hunted, Whitney seemed open to and intrigued by Rainsford's points and way of thinking.
Ivan is a near irrelevant character, being a mere Cossack who follows whatever General Zaroff says. He is mindless and has almost zero traits to even compare to Rainsford, let alone any traits aside from a mindless follower to begin with.
The answer would be General Zaroff. This is almost like the cliche protagonist vs antagonist foil. Both of them are hunters, but different kinds. Zaroff got bored with animals and wanted to hunt human people instead, whereas Rainsford had enjoyed the thrill of an animal hunt and thinks that the hunting of people is murder. Zaroff is more heartless and cold, a killer, if you will. Rainsford seems to think highly of actual people, and had no interest in playing Zaroff's game.
<span>Which is not tomb enough and continent
To hide the slain?—O, from this time forth,
My thoughts be bloody, or be nothing worth!
(Hamlet, act IV, scene IV)</span>