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In an oven at 220 °C, metal balls (k=2 W/mK, p=3500 kg/m³, a=4x10-7 m²/s, cp=2800 J/kgK, m=6 kg) initially at a uniform temperature of 10 °C is to be heated. If temperature at the center of the ball is 45 °C after 1 hour, what is the temperature (°C) at the surface? (Use related tables, NOT charts. Do NOT make interpolation while using tables, use the nearest value) (HINT: Solution may require iteration). О а. 217 O b. 207 О с. 200 O d. 212 О е. 196

In an oven at 220 °C, metal balls (k=2 W/mK, p=3500 kg/m³, a=4x10-7 m²/s, cp=2800 J/kgK, m=6 kg) initially at a uniform temperature of 10 °C is to be heated. If temperature at the center of the ball is 45 °C after 1 hour, what is the temperature (°C) at the surface? (Use related tables, NOT charts. Do NOT make interpolation while using tables, use the nearest value) (HINT: Solution may require iteration). О а. 217 O b. 207 О с. 200 O d. 212 О е. 196

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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In an oven at 220 °C, metal balls (k=2 W/mK, p=3500 kg/m³, a=4x10-7 m2/s, c,=2800 J/kgK, m=6 kg) initially at a uniform temperature of 10 °C is to be heated. If temperature at the center of the ball is 45 °C after 1 hour, what is the temperature (°C) at the surface? (Use related tables, NOT charts. Do NOT make interpolation while using tables, use the nearest value) (HINT: Solution may require iteration). O a. 217 b. 207 O c. 200 O d. 212 O e. 196
Transcribed Image Text:In an oven at 220 °C, metal balls (k=2 W/mK, p=3500 kg/m³, a=4x10-7 m2/s, c,=2800 J/kgK, m=6 kg) initially at a uniform temperature of 10 °C is to be heated. If temperature at the center of the ball is 45 °C after 1 hour, what is the temperature (°C) at the surface? (Use related tables, NOT charts. Do NOT make interpolation while using tables, use the nearest value) (HINT: Solution may require iteration). O a. 217 b. 207 O c. 200 O d. 212 O e. 196
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