Comparing pitch of sounds
order the sounds made by these sources from highest
to lowest pitch
telephone, piano, motorcycle, lawn mower
lawn mower, motorcycle, piano, telephone
motorcycle, telephone, piano, lawn mower
lawn mower, piano, telephone, motorcycle
125 250 500 1,000 2,000 4,000 8,000
frequency (hz)

Answer: 1.4 seconds which is the third optionexplanation: current is defined as the flow of charge per timetherefore, the equation that relates current, charge and time can be expressed as follows: i = δq / δtwhere: i is the current given = 1.8 ampereδq is the charge given = 2.5 coulombδt is the time required for the flow of the given charges to give the 1.8 ampere.substitute with the givens in the above equation to get the time as follows: 1.8 = 2.5 / δtδt = 2.5 / 1.8 = 1.38888 which is approximately 1.4 secondshope this was !