Answer:

Explanation:
As we know that the speed of the wave in string is given as

now we will have
frequency of the wave is given as


now if the ant will feel weightlessness then we will have

so we will have



spray him in the eyes and you have until he washes it put
Answer:
Just as distance and displacement have distinctly different meanings (despite their similarities), so do speed and velocity. Speed is a scalar quantity that refers to "how fast an object is moving." Speed can be thought of as the rate at which an object covers distance. A fast-moving object has a high speed and covers a relatively large distance in a short amount of time. Contrast this to a slow-moving object that has a low speed; it covers a relatively small amount of distance in the same amount of time. An object with no movement at all has a zero speed.
Liquids are used in a hydraulic system because unlike gases, liquids CAN NOT BE compressed therefore making them the ideal substance for the hydraulic system.