An iron designed for use at 120 V and 5.0 A is connected to a power source of 240 V. Calculate the current the iron will draw at the higher potential.
State what will happen to the iron.

please add the formula.​

Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?