Answer:
Produces heat in various parts of machines.
Due to friction we have to exert more power in machines.
It opposes the motion.
Due to friction, noise is also produced in machines.
Due to friction, engines of automobiles consume more fuel which is a money loss.
Explanation:
Source: https://www.quora.com/What-are-the-disadvantages-of-friction
Answer:
0.029%
Explanation:
Weight on the surface is given by,

The acceleration due to gravity at given height is,

The weight in another height is equal to





The change of the Weight is,
