Jenny plucked a tight string softly, then harder. what happened when jenny plucked the string harder?
a. the pitch got higher.
b. the pitch got lower.
c. the sound was louder.
d. the sound was quieter.

Which two particles are found in the center of an atom

Place several e-field sensors at a few points on different equipotential lines, and look at the relationship between the electric field and the equipotential lines. which statement is true? 1-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of higher voltages. 2-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of lower voltages. 3-at any point, the electric field is parallel to the equipotential line at that point.

Frequency of electromagnetic waves that a radio station is assigned is called