Answer:
The correct answer would be 200m
Explanation:
20x10=200
the previous answer is incorect from the other user.
Sodium (Na) is a Alkali metal so that's the answer
Answer:
a. The thickness of the wire is 2.5 mm.
b. The wire is 0.25 cm thick.
Explanation:
Number of turns of the wire = 10
The length of total turns = 25 mm
a. The thickness of the wire can be determined by;
thickness of the wire = 
= 
= 2.5 mm
Therefore, the wire is 2.5 mm thick.
b. To determine the thickness of the wire in centimetre;
10 mm = 1 cm
So that,
2.5 mm = x
x = 
= 0.25 cm
The wire is 0.25 cm thick.
I’m pretty sure it’s true x
A. is the right answer since work is negative and Q which is heat in negative also