Plz help no links like imma fail so no links

Amplitude is a measure of a waves a; speed b; distance c; energy d; frequency

Which of the following changes will increase the capacitance of a parallel-plate capacitor? (there could be more than one correct choice.) a) increase the charge on the plates b) decrease the poten5al between the plates c) increase the potential between the plates d) introduce a dielectric material between the plates e) decrease the separation between the plates

How can you measure the amplitude of a longitudinal wave?