Có hai điện tích q1 = - 6.10-9 C và q2 = 4.10-9 C đặt tại A, B trong không khí cách nhau 8 cm. O là trung điểm AB. M là điểm nằm trên đường thẳng qua A và vuông góc với AB, cách A 6 cm. Đặt vào O một điện tích q0 = 5.10-6 C. Tính công của lực điện di chuyển q0 từ O đến M​

Which type of wave can travel without a medium

Which of the following changes will result in a stronger electromagnet? a. using fewer coils of wire b. using a higher voltage c. using a shorter nail d. using a longer wire

When temperature of a substance increases, of its particles increase resulting in more between particles. real world applications of thermal expansion absolute zero (-273 degrees c) is the lowest possible temperature on the kelvin scale. it is a measure of where a substance has no kinetic energy. heat is a process of the . energy flows spontaneously from a object to a until equilibrium is reached. heat is measured in heat is transferred throughis a method of heat transfer that occurs between particles of matter that are in direct contact with each other. are poor conductors that impede / reduce the rate of heat transfer. is a method of heat transfer that occurs in fluids (non-solids) by means of currents. real world application of convectiona method of heat transfer through electromagnetic waves. when energy moves from one object to another inside a closed system, no energy is or in the system in the transaction. systems will spontaneously move to a state of organized energy or high disorder over time called