Na figura abaixo despreze as forças dissipativas e calcule o valor da carga Q, sabendo que o rapaz exerce uma força de 15N para mantê-la em equilíbrio. ME AJUDE POR FAVOR!!!

When a neutrally charged atom loses an electron to another atom, the result is the creation of a. two charged atoms. b. two negatively charged atoms. c. two positively charged atoms. d. two neutrally charged atoms.

Let f(x) = x4- 8x2 . find the relativeextrema of this function using the second derivative test.

Agraduated cylinder contains 63.0 ml of water. a piece of gold, which has a density of 19.3 g/ cm3, is added to the water and the volume goes up to 64.5 ml. calculate the mass in grams of the gold that was added to the water. explain how you got your answer.