Answer:
32
Step-by-step explanation:
Answer:
2.5
Step-by-step explanation:
Answer:
x= -1
y=2
Step-by-step explanation:
6x+5y=4
6x-7y=-20
Subtract
Answer:

Step-by-step explanation:
We know (Ohm second law) that
where k inlcudes the rest of the parameters (material, lenght). In our situation we have k=
. The moment the diameter becomes 8mm R becomes
