Welcome to Westonci.ca, the place where your questions are answered by a community of knowledgeable contributors. Find reliable answers to your questions from a wide community of knowledgeable experts on our user-friendly Q&A platform. Get immediate and reliable solutions to your questions from a community of experienced professionals on our platform.
Sagot :
Answer:
At 820 K, the object lose heat at the rate of 0.072 J/min.
Explanation:
By using Newton's cooling law, the formula to calculate the rate of cooling R is,
R=-k(T-To)
where k is a constant, T is the temperature of the object and To is the temperature of the surrounding.
At T=950 K, R=0.15 J/min and To=700 K,
Therefore, 0.15=-k(950-700)
k=0.15/250 J/K min.
At T=820 K,
R=-(0.15 / 250)*(820-700)
R=-0.072 J/min
Therefore the rate of heat loss at T=820 K is 0.072 J/min.
Know more about Newton's cooling law.
brainly.com/question/14513140
#SPJ10
Thank you for your visit. We're committed to providing you with the best information available. Return anytime for more. Thanks for using our platform. We aim to provide accurate and up-to-date answers to all your queries. Come back soon. Get the answers you need at Westonci.ca. Stay informed with our latest expert advice.
