Anew technology company is marketing drones for residential use. the bar graph shows the relation between number of sales and three types of marketing strategies over the company’s first five months of operation. what are the two biggest advantages of using a bar graph to display this kind of data?

Atoaster oven has a resistive heating element. the average rate at which it dissipates energy as thermal energy is 1.00 \(\rm kw\). in the united states, emf amplitude in household circuits is \(\mathcal e_{\max}\) = 170 \({\rm \; v}\) and the \(\rm ac\) oscillation rate is 60 \(\rm hz\). part a what is the root-mean-square current through the heating element?