Describe an instance where you might use standard rounding. describe an instance where you might use order of magnitude estimation. If you did this on part 2 of the test, plz help me out,( do not delete answer or give me false hope, no links. Because I can’t open them, if you have a link, go in that link and copy and paste your answer) I really need general help here.

When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell

Abaseball is thrown from the outfield toward the catcher. when the ball reaches its highest point, which statement is true? (a)its velocity is not zero, but its acceleration is zero. (b) its velocity and its acceleration are both zero. (c) its velocity is perpendicular to its acceleration. (d) its acceleration depends on the angle at which the ball was thrown. (e) none of the above statements are true.

Which wave is the result of amplification and produces a louder sound