How Much Does It Cost to Use a Hair Dryer for a Year?

[reyunknown]

Make an order-of-magnitude estimate of the cost of one person’s routine use of a hair dryer for 1 yr. If you do not use a blow dryer yourself, observe or interview someone who does. State the quantities you estimate and their values.

 

[bp_psy]

Find out the power of a dryer (Google) and the cost of a kWh in your area (Google).Estimate the time somebody uses the dryer in a year in hours.Compute the number of kWh then the price.

 

[Pengwuino]

By the way, this topic is not a topic for advanced physics. This is something for introductory physics.

The question should be very intuitive. The best part about order-of-magnitude questions is that you can, for example, say a new flat screen tv costs $2000 or $5000 and as an order of magnitude calculation goes, they're the exact same answer.

 

[reyunknown]

Thx for helping !