SC-1157
Energy transfer
Lower Sec Science · Secondary 2 · Hard · Energy transfer
An electric heater has a power of 2.0 kW. It is used for 30 minutes every day. The cost of electricity is 28 cents per kWh. What is the cost of using the heater for 10 days?
- \$2.80
- \$0.28
- \$28.00
- \.40
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