Which statement best reflects the approach of gestalt psychology?

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?

Awave has a wavelength of 7 mm and a frequency of 19 hertz. what is its speed?

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?