Answer:
Static electricity.
Explanation:
Electric Charge; Is the quantity of electricity held in an object
The balloon is electrically neutral, meaning it had an equal amount of positive and negative charges hence it couldn't attract the paper.
After rubbing the balloon, it gained an electric charge; and after gaining this charge it got the ability to exert a force on the pieces of paper and attract them, This is called static electricity.
Therefore, Static electricity caused the paper to stick to the balloon.
The brightness and intensity of a color are defined by its saturation. To lower the saturation of a pigment hue, both white and black (grey) are added to the color.
What does saturation mean in color?
- The quantity of white light blended with a colour is referred to as saturation.
- Colors with high saturation, such as the circle on the left, contain little or no white light. The quantity of shade blended with the color determines the level of brightness.
- The wavelengths of light that an item reflects determine its 'color.' This is governed by the arrangement of electrons in the atoms of that substance, which will absorb and re-emit photons of different energy in accordance with intricate quantum principles.
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Answer:
B
Explanation:
In a two body collision where kinetic energy is conserved , this means the kinetic energy before collision is equal to the kinetic energy after collision.
when kinetic energy is conserved , momentum is also conserved.
m1u1 +m2u2 = m1v1 +m2v2
or
m1u1 +m2u2 = (m1+m2)v
The above equations are for bodies that undergoes elastic and inelastic collisions. It represents their momentum before and after collision which are equal
