Answer: B Explanation: The reason is u can’t have a stable current without a positive and negative.
The capability to do work is said to be energy. It can neither be created nor be destroyed according to law of conservation of energy. Energy exist in different forms depends upon the work to be done such as potential energy, kinetic energy, mechanical energy, heat energy etc.
Now, when the guitarist plucks the guitar strings to make sound, he uses mechanical energy and when guitarist plucks the guitar strings guitar produces sound energy also.
Thus, option (d) is the correct answer.
Answer:
An applied force is an interaction of one object on another that causes the second object to change its velocity. A resistive force passively resists motion and works in a direction opposite to that motion. An inertial force resists a change in velocity.
Explanation:
acidic in naturenature
Generally, Oxides of non-metals are acidic in nature. When non-metals are reacted with water it forms an acidic solution. The common oxides of Sulphur, Selenium, and Bromine are strongly acidic.
