Answer:
The focal length of a lens is refers to the distance from the center of the lens to the principal foci.
Answer:add resistance in the parallel circuit with the total resistance
Explanation:
the total resistance in the parallel circuit is also add resistance.
Answer:
If the rod is swapped for a different material such as acetate , electrons are rubbed off the acetate and onto the duster. The acetate rod has lost electrons, giving it a positive charge. The duster has gained electrons, giving it a negative charge.
Brainliest would be nice
Physics is a natural science that involves the study of matter and its motion through space and time, along with related concepts such as energy and force.
Matter is generally considered to be anything that has mass and volume.
Scientific laws and theories express the general truths of nature and the body of knowledge they encompass. These laws of nature are rules that all natural processes appear to follow.