2.3ling friction is Less_than the static friction.
3. The passage of an electric current through a solution causes
4.Night birds have Number ones than rods in their eyes.
effects.
Answers
The friction between the two surfaces is because of the interlocking of the irregularities of the two surfaces.
During sliding, contact points do not get enough time to get interlocked properly. Therefore, less friction. But, when the object is at rest, the surfaces interlock well, therefore friction is more. This explains why sliding friction is less than static friction.
The passage of an electric current through a solution causes chemical effects.
When an electric current passes through a solution, the solution decomposes into its positive and negative ions. This process of decomposition of the solution is a chemical effect.
Answer:
Mostly petroleum is used as a source of energy, being rich in fuel carbon in electricity generation or running some kinds of heat engines. Raw petroleum (also known as crude oil) is used in three main ways: transport, generating electricity, and producing materials.