A student swings back and forth from position A to C, as shown. Which of the following happens when the swing moves from Positio
n B to Position A? [] Both potential energy and kinetic energy of the student increase.
[] Both potential energy and kinetic energy of the student decrease.
[] Potential energy of the student decreases and kinetic energy of the student increases.
[] Kinetic energy of the student decreases and potential energy of the student increases.
hai điện tích điểm bằng nhau có độ lớn 6.10^-8C đặt cách nhau một khoảng là r trong dầu hỏa có hằng số điện môi E=2,1. Lực tương tác tĩnh điện giữa chúng laf3,85.10^-4. tìm r
True or false: while riding a bicycle up a gentle hill, it fairly easy to increase your potential energy, but to increase your kinetic energy would ...
