Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is the r (ω/km) when the frequency is 10k?

### Inputs:
table_name: table, columns: ['Frequency (Hz)', 'R (Ω/km)', 'L (mH/km)', 'G (μS/km)', 'C (nF/km)']

### Response:
SELECT R (Ω/km) FROM table WHERE Frequency (Hz) = 10k