Which particles are found in the nucleus of an atom?

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

Rohit is trying to tune an instrument

Consider two regions of space containing a static electric field, region a and region b. in region a the equipotential lines are more closely spaced than those in region b. what can be said about the relative strength of the electric field in the two regions? a) the electric field in region a is stronger th