Ware them down, its like rubbing two pieces of chalk together.
Explanation:
It took
for the sound to reach the 1st wall and at the same time time, the same sound took
to reach the 2nd wall. Assuming that the sound travels at 343 m/s, then let
be the distance of the person to the 1st wall and
be the distance to the 2nd wall. So the distance between the walls X is


I am pretty sure it is A Becoming warm
Since it’s moving and causing friction which makes it warm
Hope this helps
Mark me brainliest
Answer:
(1) how thick the fluid is <u>viscosity</u>
Explanation:
This is a type of friction experienced within liquids and gases. It depends on:__________.
(1) how thick the fluid is_______?
(2) how the shape of the object?
(3) how the speed of the object?
the thickness of a fluid is known as viscosity. the more viscous a fluid is the more frictional force is exerted on an object by the fluid
frictional force is an opposing force that resist the movement of two surfaces in contact, there are to types 0f frictional force
1. static frictional force
2. dynamic frictional force