# Physics

posted by .

Your car has been setting out in the hot summer sun all day. The metal hood, the glass windshield, and the fabric upolstry are all at 180 degrees farenheit. If you touch the hood with your hand it could be burned, if you touch the windshield it will be very hot, if you touch the seat it will be very warm. Why is there a difference in how the different objects feel if they are all the same temperature?

• Physics -

The rate at which the materisl can transfer heat to your hand is proportional to k/(density*C), where k is the thermal conductivity. This parameter is called the "thermal diffusivity". The steel hood has the highest thermal diffusivity. Glass is the lowest.

• Physics -

The fabric absorbs most of the heat but the glass window and the metal hood cannot absorb the heat as well as the seat. This is why the fabric feels warm, but the glass window and the metal hood are very hot.

## Similar Questions

1. ### need HELPwith 2 questions!!

How long is day and how long is night? Does the sun come up in the morning all over the world?
2. ### physics

in different parts of a car air conditioner a liquid changes to a gas and a gas changes to a liquid. a)which of these changes causes the cooling?
3. ### Chemistry

why shold you heat the evaporating dish containing the contents to fume hood. Why should the content be heated in the fume hood.
4. ### Math

How many feet of climbing in one day on a 65 mile ride over Mt. Hood (Mt. Hood is 11,249 feet)?
5. ### Science/Physics

Your car has been setting out in the hot summer sun all day. The metal hood, the glass windshield, and the fabric upholstry are all at 180 degrees farenheit. If you touch the hood with your hand it could be burned, if you touch the …
6. ### Science/Physics

Your car has been setting out in the hot summer sun all day. The metal hood, the glass windshield, and the fabric upholstry are all at 180 degrees farenheit. If you touch the hood with your hand it could be burned, if you touch the …
7. ### English

I need examples of selflessness in Robin Hood and Jeremiah Johnson - I have Robin Hood but don't know about Jeremiah Johnson
8. ### Math

A model of A car has a scale of 3 cm : 2m the length of the actual hood of the car is 1m what is the length of the hood of the model
9. ### physics

The hood ornament of Abe's car is shaped like a ring 0.06m in diameter. Abe is driving toward the west so that the earth's 5.0x10^-5 T field provides no flux through the hood ornament. What is the induced voltage in the metal ring …
10. ### physics

The hood ornament of Abe's car is shaped like a ring 0.06m in diameter. Abe is driving toward the west so that the earth's 5.0x10^-5 T field provides no flux through the hood ornament. What is the induced voltage in the metal ring …

More Similar Questions