Explanation:
It is known that opposite charges tend to attract each other whereas like charges tend to repel each other.
For example, when we rub a plastic pen with wool and it gets attracted towards an invisible tape then it means that there is an opposite charge present on both the objects.
A neutral object also tends to develop a charge when it comes in contact with a charged object.
Thus, we can conclude that the following statements are true.
- The tape might be positively charged.
- The tape might be uncharged.
Adding oil reduces friction between the moving parts
Less energy is used
The birthplace of stars are massive cosmic structures formed from gases, also known as nebulas.
Answer: a
Increase
Explanation:
Simple pendulum motion obeys law of conservative of energy. Where at maximum K.E, P.E = 0 and vice versa.
Also, increase in K.E will lead to decrease in P.E and vice versa.
A mirror equation is an equation that relates object distance and image distance to focal length. The distance of the image from the mirror will be -3 cm.
<h3>What is a mirror equation?</h3>
A mirror equation is an equation that relates object distance and image distance to focal length. It's sometimes referred to as a mirror formula.

The given data in the problem is;
f is the focal length = -4. 5 cm
u is the object distance=12. 0 cm
v is the image distance =?

Hence the distance of the image from the mirror will be -3 cm.
To learn more about the mirror equation refer to the link;
https://brainly.in/question/31545592