Câu 48. Cho mạch điện như hình vẽ: Đèn ghi 6V – 3W, B là bình điện phân (AgNO3/Ag) CÓ điện trở là Re. Ra rất nhỏ, Rv rất lớn.
V
Đ
• Khi ka mở vôn kế chỉ 9V
• Khi kì, ko đóng. (V) chỉ 6V và (A) chỉ 3,5A
a. Tính Ra, RP
b. Tính lượng Ag bám vào catod trong 32"10"
C. Bộ nguồn mắc như thế nào? Số pin sử dụng là bao nhiêu? Biết mỗi pin có e = 1,5V, L = 0,252.
d. Hiện tượng điện phân diễn ra như thế nào?

Ok i am attempting to my niece attach a galvanized wire (like a tether for a dog) at the corner of two fences, making a tightwire if you will and we drilled a hole in a softball and she hits it. the ? and problem is that we can not get the wire taunt enough where it doesnt sag after hitting the ball once, and the wire sags and wobbbles. its a 15 ft rubber covered galvanized wire and one can adjust the length of the placing of the wire by having it make the corner of 2 fences become a it can be adjusted, however, with all our human strength and pliers we could not make it taunt as possible. is there anything other that attaching it to a car to do this. sorry abt the length but it would mean the world to my niece if i could solve this came up with the entire idea herself, and she is 14 and paid for the wire and did as much work as i did drilling a hole through a softball wide enough for attaching piece at each end of the wire that clips on to the fence. . any ideas welcome if serious. but awesome if it is a fact. much obliged. bucky bukowski buckman

Describe how the motion of a spring being pushed forward and backward is similar to the motion of air particles in a sound wave.

What would people living along the coast in south florida do if there was a hurricane warning? move to locations away from the water flock along coasts to watch the natural phenomenon buy instruments to predict the exact location of the hurricane measure water levels to know the exact time of the hurricane