Unclear question. But I inferred you may be referring to an article about a historic place called Target Rock.
<u>Explanation</u>:
Interestingly, Target Rock or Target Rock National Wildlife Refuge as it is also called refers to a wildlife reserve located on the North Shore of Long Island in Lloyd Neck.
Its history was said to date back to the period during the British Revolutionary War. It is believed that a large rock was found here and so it was used as target practice by British warships.
What are the options and story this question is about?
Complete question:
The torch worked for 14,400 seconds before the cells needed replacing. The current in the LED was 50 mA.
Calculate the total charge flow through the cells.
Answer:
the total charge flow through the cells is 720 C.
Explanation:
Given;
life spam of the torch cells, t = 14,400 s
current in cell, I = 50 mA = 50 x 10⁻³ A
The quantity of charge flowing through the cells is calculated as;
Q = It
Q = 50 x 10⁻³ x 14,400
Q = 720 C
Therefore, the total charge flow through the cells is 720 C.
