A cylindrical steel rod, 0.01 m in diameter and 0.2 m in length is first heated to 750 °C and then immersed in a water bath at 100 °C. The heat transfer coefficient is 250 W/m2-K. The density, specific heat and thermal conductivity of steel are p = 7801 kg/m³, c = 473 J/kg-K, and k =43 W/m-K, respectively. The time required for the rod to reach 300 °C is seconds.
A cylindrical steel rod, 0.01 m in diameter and 0.2 m in length is first heated to 750 °C and then immersed in a water bath at 100 °C. The heat transfer coefficient is 250 W/m2-K. The density, specific heat and thermal conductivity of steel are p = 7801 kg/m³, c = 473 J/kg-K, and k =43 W/m-K, respectively. The time required for the rod to reach 300 °C is seconds.
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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![A cylindrical steel rod, 0.01 m in diameter and 0.2 m
in length is first heated to 750 °C and then immersed in a
water bath at 100 °C. The heat transfer coefficient is 250
W/m2-K. The density, specific heat and thermal
conductivity of steel are p = 7801 kg/m3,c = 473 J/kg-K,
and k =43 W/m-K, respectively. The time required for
the rod to reach 300 °C is
seconds.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F09282afd-07e8-4d3e-b91c-82bdd075e5ec%2Fa522bedc-9adc-4f84-b952-05d93da23c79%2Fs8jcb0g_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A cylindrical steel rod, 0.01 m in diameter and 0.2 m
in length is first heated to 750 °C and then immersed in a
water bath at 100 °C. The heat transfer coefficient is 250
W/m2-K. The density, specific heat and thermal
conductivity of steel are p = 7801 kg/m3,c = 473 J/kg-K,
and k =43 W/m-K, respectively. The time required for
the rod to reach 300 °C is
seconds.
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