madisontrosclair2
22.04.2020 •
Mathematics
A cold beer is heating up at a rate proportional to the difference between room temperature and the temperature of the beer. Denote by y(t) the temperature difference, i.e. y(t)=R-b(t), where R is room temperature and b(t) is beer temperature in degrees Fahrenheit. Here t is the time elapsed since the beer is poured, measured in minutes. The cooling of the beer is governed by the equation =ky(t) where k is a constant. (a) (3 points) Differentiate y(t), and then plug in y'(t) and y(t) to the above equation and check that both sides of the equation are equal. (b) (3 points) Now suppose that when the beer is poured, it is at 35 degrees. 10 minutes later, it is at 55 degrees. Room temperature R throughout is 75 degrees Fahrenheit. Use this information to figure out the unknown constants C and k and to determine the temperature of the beer b(t) as a function of time. (c) (3 points) At what time will the temperature of the beer be 70 degrees?
Solved
Show answers
More tips
- P Philosophy How did the concept of module arise in computer science?...
- D Dating, Love, Relationships Why Should the Man be Active and the Woman Passive during Foreplay?...
- S Society and Politics Выборы: Смысл, Значение и Отражение...
- B Business and Finance How to Get Your Money Back When Lending? Top 7 Ways...
- F Family and Home Do Lullabies Help Babies Sleep or Is it Just a Myth?...
- F Family and Home Why Does God Punish Us Constantly and How Can We Fix It?...
- D Dating, Love, Relationships Why do we feel shame?...
- S Society and Politics How Could Nobody Know About the Dead Mountaineers?...
- O Other How to Accidentally Get a Rare Coin with Your Change and How to Know Its Value?...
- P Philosophy Unbelievable stories of encounters with otherworldly forces...
Answers on questions: Mathematics
- M Mathematics I will mark brainliest answer quickly A carton has a length of fraction 2 and 1 over 4 feet, width of fraction 1 and 3 over 5 feet, and height of fraction 2 and 1...
- B Business Last year, the Tilden Co. had credit sales in the amount of $470,000, and it had uncollectible accounts in the amount of $4,700. Based on last year, what would the...
- H History What is happening to facts and truth?...
- B Business Discuss the relationship between competition and consumer expectations....
Ответ:
Step-by-step explanation:
Ответ:
20 * 135% = 27
27 * 100 = 2700