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A sphere, a cube and a thin circular pat...

A sphere, a cube and a thin circular pate are heated to the same temperature. If they are made of same material and have equal masses, determine which of these three object cools the fastest and which one cools the slowest?

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To determine which object cools the fastest and which one cools the slowest among a sphere, a cube, and a thin circular plate, we can use the principles of heat transfer and Stefan's law. ### Step-by-Step Solution: 1. **Understanding the Concept of Cooling**: The rate of cooling of an object is influenced by its surface area. According to Newton's Law of Cooling and Stefan-Boltzmann Law, the rate of heat loss is proportional to the surface area of the object. 2. **Identifying the Surface Areas**: ...
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CENGAGE PHYSICS ENGLISH-CALORIMETRY-Exercise 1.3
  1. Explain why the surface of a lake freezes first.

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  2. In newton's law of cooling in the form (dDeltatheta)/(dt)=-kDeltathe...

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  3. A ‘thermacole’ icebox is a cheap and efficient method for storing smal...

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  4. A brass boiler has a base area of 0.15 "m"^(2) and thickness is 1.0 "c...

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  5. An electric heater is placed inside a room of total wall area 137 m^2...

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  6. An indirectly heated filament is radiating maximum energy of wavelengt...

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  7. A uniform copper bar 100 cm long is insulated on side, and has its end...

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  8. Two rods A and B of same length and cross-sectional area are connected...

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  9. Two conductors A and B are connected in parallel as shown in Fig. i....

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  10. A sphere, a cube and a thin circular pate are heated to the same tempe...

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  11. One end of a brass rod of length 2.0 m and cross section 1cm^2 is kept...

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  12. Three rods AB, BC and BD having thermal conductivities in the ratio 1:...

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  13. Thermal conductivity of inner core of radius r is K and of the outer o...

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  14. A cylinder of radius R and length l is made up of substance whose ther...

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  15. A cube and a sphere of equal edge and radius, made of the same substan...

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  16. A spherical ball of radius 1cm coated with a metal having emissivity 0...

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  17. A body emits maximum energy at 4253 Å and the same body at some other ...

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  18. A black body at 1500K emits maximum energy of wavlength 20000Å. If sun...

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