Reduce friction because friction just makes things harder
Answer:
When an object vibrates, it causes movement in surrounding air molecules. These molecules bump into the molecules close to them, causing them to vibrate as well. This makes them bump into more nearby air molecules.
If this is a true or false question, it is True.
Answer:
Explanation:
Given
Let us suppose police car and motorist travel in straight line and police car catches motorist after s distance
Distance travel by motorist
----1
Distance traveled by Police car


----2
from 1 & 2 we get

(a)Velocity of Police car after t sec



(b)time taken by police car is

(c)Distance travel by police car
Id say both. all organisms perform cellular respiration, and plants perform photosynthesis, as well as cellular respiration.