một tụ điện đuoc nap den nang luong dự trữ bằng 4J. SAu đó một tụ thứ hai không tích điện nói song song với nó. nếu điẹn tich phân bố bằng nhau thì năng lượng dự trữ trong điện truong là bao nhieu

W= fd
where f is an applied force and d is the distance over which it is applied. when a parachuting skydiver is at constant velocity, he is experiencing "terminal velocity", the point at which his acceleration down is canceled out by air resistance. that means that the resisting force of the air is equal to his weight, but in the opposite direction. with this, we can solve for the work done by the force.
w = fd
w = (92.0)(9.81 m/s^2) (325)
w= 2.93 x 10^5 j
the value for work in this case is positive because it is pushing up on the skydiver, who has a downward force of gravity.
therefore the answer is 2.93 x 10^5 j

It would stay the same