You make a wave in a string by moving one end of the string back and forth two times per second. What is the period of the resulting wave? Show how you arrived at your answer.

490 n  f=125n a=2.5m/s2

Answer sample (c); // would be best because the percentage of the energy in an incident wave that remains in a reflected wave from this material is the smallest;

Answermake them get very hot and over time wear them out;

The chemical reactions lab we did is typically called a "copper plating lab,  because the acid solution cleaned the pennies and made the copper look shinier;   the acid solution cleaned the paperclips and made them look like pennies;   &   the copper from the pennies was removed, and then added to the paperclips.