Final answer:
To convert energy in kg × m2/s2 to kilowatt-hours, divide by 3.6 million (since 1 kWh = 3.60 × 106 J). Then, to find the monetary value, multiply the kWh by the rate of 10 cents per kWh.
Step-by-step explanation:
To convert the given energy from kg × m2/s2 (which is equivalent to joules) to kilowatt-hours (kWh), we use the conversion factor that 1 kWh equals 3.60 × 106 joules. Thus, if you have 3× 108 kg × m2/s2, you divide that number by 3.60 × 106 to find the energy in kWh.
Next, to find the monetary value of this energy if it were converted to electricity at a cost of 10 cents per kWh, you multiply the number of kWh by the rate of 10 cents per kWh. For example, if the energy conversion resulted in 100 kWh, at 10 cents per kilowatt-hour, the total cost would be $10.00.