Alternating Current vs Direct Current - General Questions

What is the period of a 16 MHz sine wave?

One oscilloscope selector knob that allows the major and minor divisions of the graticule to be used to determine a waveform period is called a:

What is the peak-to peak voltage of a 56 V_rms ac voltage?

A sine wave has:

What is the waveform period of a square wave signal that horizontally covers 3 major divisions per cycle? (time/cm = 50 ms)

How long would it take to transmit an electromagnetic wave to a receiving antenna 1,000 miles away?

What is the peak-to-peak current value when an ammeter measures a 20 mA value?

What is the rms voltage value of an ac signal whose peak oscilloscope display uses 3 major divisions above the zero setting? (V/cm = 5)