Posted by **Aaron** on Tuesday, March 1, 2011 at 4:10pm.

The table shows the power ratings of four electrical appliances.

Fan heater 2 kW

Oven 3 kW

Kettle 2 kW

Microwave oven 0.75 kW

The kettle is used for a total of 30 minutes a day. It has an efficiency of 0.9

What is the cost of the energy wasted by the kettle each day?

1 0.6 p

2 1.0 p

3 6.0 p

4 9.0 p

please can someone post a walkthrough of the answer along with the answer please, Thanks in advance.

## Answer this Question

## Related Questions

- science - On a particular day, the following appliances are used for the times ...
- science - On a particular day, the following appliances are used for the times ...
- phyical science - On a particular day, the following appliances are used for the...
- physics.... - Suppose that the inside length of a microwave oven is 30 cm. If ...
- Physics - a large container holding 340g of water, initially 14°C is placed in a...
- College Physics II - A typical gamma ray emitted from a nucleus during ...
- Physics - How long does it take a 1000. W electric kettle to bring 1.0L of water...
- CHEMISTRY - I don't even understand how this question works. How do I solve it? ...
- Chemistry - A particular microwave oven delivers 800 watts. (A watt is a unit of...
- Physics - The temperature in an electric oven is 160°C. The temperature at the ...