SOMEONE HELP ME PLEASEE IM NOT SURE IF IM CORRECT PICTURE IS ABOVE ECON QUESTION BUT IF NOT HELP ME OUT

11. you want to calculate the displacement of an object thrown over a bridge. using -10 m/s2 for acceleration due to gravity, what would be the total displacement of the object if it took 8 seconds before hitting the water?

Explain why electric current cannot exist if a current doesn't have a voltage source.

Emagnitude of the electrical force acting between a +2.4 ×  10–8  c charge and a +1.8 ×  10–6  c charge that are separated by 0.008 m is    n, rounded to the tenths place.