Calculate the yearly cost of running a 6 W electric clock continuously in a location where energy costs 12 cents per kW · h.
Cost ($) = Power (kW) x Price ($ / kWh) x Time (h)
Cost ($) = (0.006 kW) x ($0.12) x (365 days/year x 24 h/day)
Cost = $6.3072
To calculate the yearly cost of running a 6W electric clock continuously, we need to determine the total amount of energy consumed over the course of a year and then multiply it by the cost per kilowatt-hour.
Step 1: Convert the power of the clock from watts to kilowatts:
6W ÷ 1000 = 0.006 kW
Step 2: Calculate the energy consumed per hour:
0.006 kW × 1 hour = 0.006 kW · h
Step 3: Determine the energy consumed in a year (assuming 365 days):
0.006 kW · h × 24 hours × 365 days = 52.56 kW · h
Step 4: Calculate the cost using the given energy cost:
52.56 kW · h × $0.12/kW · h = $6.31
Therefore, the yearly cost of running a 6W electric clock continuously in a location where energy costs 12 cents per kW · h is approximately $6.31.
To calculate the yearly cost of running a 6 W electric clock continuously, we need to take into consideration the energy consumption and the cost per kilowatt-hour (kW · h).
First, let's convert the power of the clock from watts to kilowatts by dividing the power by 1000. In this case, 6 W is equal to 0.006 kW.
Next, we need to calculate the energy consumed by the clock in a year. To do this, we multiply the power (in kilowatts) by the number of hours in a year, which is 8760 (24 hours x 365 days).
Energy consumed in a year = Power (kW) x Time (hours)
Energy consumed in a year = 0.006 kW x 8760 hours = 52.56 kW · h.
Finally, we calculate the cost by multiplying the energy consumed by the cost per kilowatt-hour.
Yearly cost = Energy consumed (kW · h) x Cost per kW · h
Yearly cost = 52.56 kW · h x $0.12/kW · h = $6.31 (rounded to two decimal places).
Therefore, the yearly cost of running a 6 W electric clock continuously in a location where energy costs 12 cents per kW · h is approximately $6.31.