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At what temperature do the Fahrenheit an...

At what temperature do the Fahrenheit and Celsius scales give the same reading?

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`t""^(@)C=t""^(@)F=x`
`:.x=(5)/(9)(x-32)`
`:.x=-40`
`:.-40^(@)C=-40^(@)F`
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CENGAGE PHYSICS-HEAT AND TEMPERATURE -MANDATORY EXERCISE (Exercise Set I)
  1. Convert 95^(@)F to ""^(@)C

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  2. Convert 10 J to calorie.

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  3. At what temperature do the Fahrenheit and Celsius scales give the same...

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  4. A body has 600 J of thermal energy. 100 calorie of heat energy is adde...

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  5. When two stones are rubbed together, they become hot. What is the sour...

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  6. What is thermal energy of a substance?

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  7. Two bodies with thermal energies 500 calories and 800 calories are bro...

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  8. Is the following statement accurate? 'This iron block has 2000 calorie...

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  9. What is the significance of the relation '1 calorie = 4.186 I?

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  10. What is temperature?

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  11. When are the two bodies in thermal equilibrium?

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  12. Which of the following is not a unit of heat?

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  13. Can our skin be used as an accurate measure of temperature? Why?

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  14. Give example, where human skin cannot be used as a thermometer.

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  15. Explain the working of a Mercury thermometer.

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  16. What are the fixed points used by Kelvin. Celsius and Fahrenheit scale...

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  17. If the temperature is increased by 1""^(@)C, then the increase in Fahr...

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  18. The temperature difference of 1^(@)F is same

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  19. What are the melting and boiling points of water according to the thre...

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  20. Body A has the temperature 100^(@)F and body B has temperature 100 K. ...

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