A 9.0 V potential difference is applied between the ends of a 0.70-mm-diameter, 65-cm-long nichrome wire. What is the current in the wire?

The upward force acting on the wing of a airplane in flight is known as the "lift" force. (d)

At maximum height, kinetic energy is converted in potential energy  formula: at max height, ke = ½ * 0.27kg * (16m/s) ² = 34.56 j  so the remaining pe = (41.70 – 34.56)= 7.14 j = 0.27 kg * 9.8m/s² * h  = (9.8/7.14 * 0.27)so max height h = 5.08 or 5 m 

D.) a wheel barrow, due to the fact that where the weight is in the middle, the fulcrum is at the wheel, and the input force is at the other end