What are some examples of elevation give anything

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

An airplane flies eastward and always accelerates at a constant rate. at one position along its path it has a velocity of 34.3 m/s, it then flies a further distance of 40100 m and afterwards its velocity is 47.5 m/s. find the airplane\'s acceleration and calculate how much time elapses while the airplane covers those 40100 m.

In a voltaic cell, electrons flow from the (positive/negative) to the (positive/negative) terminal.