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I. SOLVE THE FOLLOWING PROBLEMS. 1. A silver bullet used to kill vampires in the late 19th century was found to be suspended in a constant temperature enclosure. It is found that the silver bullet's tempearture cools from 100°C to 90°c in S minutes and 82°C in the next five minutes. Calculate the temperature of the enclosure. 2. A body at 100°C warms at 120°C after 5 minutes in a surrounding at 30°C. At what time will ts temperature be double that at the beginning? 3. A certain substance has a decay rate proportional to amount present. It is observe that it has an initial amount of 100kg. After 2 years it is found that 30% of its original amount was decomposed. What percentage of this substance was

I. SOLVE THE FOLLOWING PROBLEMS. 1. A silver bullet used to kill vampires in the late 19th century was found to be suspended in a constant temperature enclosure. It is found that the silver bullet's tempearture cools from 100°C to 90°c in S minutes and 82°C in the next five minutes. Calculate the temperature of the enclosure. 2. A body at 100°C warms at 120°C after 5 minutes in a surrounding at 30°C. At what time will ts temperature be double that at the beginning? 3. A certain substance has a decay rate proportional to amount present. It is observe that it has an initial amount of 100kg. After 2 years it is found that 30% of its original amount was decomposed. What percentage of this substance was

Calculus: Early Transcendentals
Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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I1. SOLVE THE FOLLOWING PROBLEMS. 1. A silver bullet used to kill vampires in the late 19th century was found to be suspended in a constant temperature enclosure. It is found that the silver bullet's tempearture cools from 100°C to 90°c in 5 minutes and 82°C in the next five minutes, Calculate the temperature of the enclosure. 2. A body at 100°C warms at 120°C after 5 minutes in a surrounding at 30°C. At what time will ts temperature be double that at the beginning? 3. A certain substance has a decay rate proportional to amount present. It is observe that it has an initial amount of 100kg. After 2 years it is found that 30% of its original amount was decomposed. What percentage of this substance was decomposed after 1 year and 3 months?
Transcribed Image Text:I1. SOLVE THE FOLLOWING PROBLEMS. 1. A silver bullet used to kill vampires in the late 19th century was found to be suspended in a constant temperature enclosure. It is found that the silver bullet's tempearture cools from 100°C to 90°c in 5 minutes and 82°C in the next five minutes, Calculate the temperature of the enclosure. 2. A body at 100°C warms at 120°C after 5 minutes in a surrounding at 30°C. At what time will ts temperature be double that at the beginning? 3. A certain substance has a decay rate proportional to amount present. It is observe that it has an initial amount of 100kg. After 2 years it is found that 30% of its original amount was decomposed. What percentage of this substance was decomposed after 1 year and 3 months?
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