Convert 36000 seconds to hours and solve a ratio problem with total mass 8 kg.

There are 60 seconds in 1 minute and 60 minutes in 1 hour.
So, 1 hour = $60 \text{ minutes} \times 60 \text{ seconds/minute} = 3600 \text{ seconds}$.

The conversion is:

The ratio of sugar to coffee is $1:3$.
Total parts = $1 + 3 = 4$ parts.

Total mass = $8 \text{ kg}$.
Mass per part = $\frac{\text{Total mass}}{\text{Total parts}} = \frac{8 \text{ kg}}{4} = 2 \text{ kg/part}$.

Mass of sugar = $1 \text{ part} \times 2 \text{ kg/part} = 2 \text{ kg}$.
Mass of coffee = $3 \text{ parts} \times 2 \text{ kg/part} = 6 \text{ kg}$.

The masses are:

• Mass of sugar: $\boxed{\text{2 kg}}$
• Mass of coffee: $\boxed{\text{6 kg}}$