A height of 6 ft 3 in is equal to _______. (Round to 3 significant digits)
A - 0.191 cm
B - 19.1 cm
<u>C - 191 cm</u>
6 ft 3 in = 190.5 cm
Answer:
0.0389 cm
Explanation:
The current density in a conductive wire is given by

where
I is the current
A is the cross-sectional area of the wire
In this problem, we know that:
- The fuse melts when the current density reaches a value of

- The maximum limit of the current in the wire must be
I = 0.62 A
Therefore, we can find the cross-sectional area that the wire should have:

We know that the cross-sectional area can be written as

where d is the diameter of the wire.
Re-arranging the equation, we find the diameter of the wire:

Answer:
C. Bears lose necessary body fat because they must swim longer in open ocean water
Explanation: