Just has to be greater than or equal to 0... w and t can never be negative since taking the square root of a negative number yields an imaginary number which would mean imaginary current. Also the question states that w can't be zero but if T is zero than the current will be zero.
Plug 7/50 into your calculator to get 0.14. The answer is C.
Answer: -0.5
step by step explanation:
6. K=4
7. N=11
8. C=2
9. R=7
10. R=4
11. Y=1
12. R=7
13. N=7
