Hai quả cầu kim loại mang các điện tích lần lượt là q1 và q2 cho tiếp xúc nhau sau đó chúng tách ra thì mỗi quả cầu mang điện tích?

The electronic structure or chlorine is 2.8.7 what is the electronic structure of fluorine?

Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.

A100-watt light bulb illuminates a solar cell. the electricity from the solar cell operates a water pump that delivers 1 watt of power. what is the efficiency of the system?