An elcetron can move from a point of 35.0 v to potential to a point of 125 v potential.? edit how much kinetic energy can the electron gain? if it started from rest, how fast would it be traveling when it arrives at the 125 v point?

Ineed the answer to question 1 , i’m desperate

Under the action of a constant force an object accelerates at 7.8 m/s2. what will the acceleration be if (a) the force is halved? (b) the object's mass is halved? (c) the force and the object's mass are both halved? (d) the force is halved and the object's mass is doubled?

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.