The speed of sound depends on the medium in which it is transported.
Sound travels fastest through solids, slower through liquids and slowest through gases.
So it will travel slowest through water at 55 degrees
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1. It’s true
4 ,7 ,8 is correct
Gravitational forces are forces of attraction. It's like the Earth pulling on you and keeping you on the ground.
Explanation:
If you want to get speed, u have to divided distance over time
The lowest speed will lose
Another name for these two words is "constant" and you want to have a "constant", because you want something to compare your experimental group to, to see whether data had changed or not. So you have placebos or a double- blind to compare your experimental group to it and also so you know you don't have a bias or anything in the study.
