Question

Suppose a cup of coffee is at 100 degrees Celsius at time t=0, it is at...

Suppose a cup of coffee is at 100 degrees Celsius at time t=0, it is at 70 degrees at t=15 minutes, and it is at 45 degrees at t=30 minutes. Compute the ambient temperature.

Math   Advanced-Math   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A cup of coffee at 90 Celsius is put into a 20 Celsius room, t=0. The...
A cup of coffee at 90 Celsius is put into a 20 Celsius room, t=0. The coffee's temperature is changing at a rate of r (t) = -7(0.7^t) Celsius per minute, with t in minutes. Estimate the coffees temperature when t=10. Round answer to TWO decimal places:
If a cup of coffee has temperature 100°C in a room where the ambient air temperature...
If a cup of coffee has temperature 100°C in a room where the ambient air temperature is 21°C, then, according to Newton's Law of Cooling, the temperature of the coffee after t minutes is T ( t ) = 21 + 79 e − t / 45 . What is the average temperature of the coffee during the first 14 minutes?
A cup of coffee has a temperature of 200F. It is placed in a room that...
A cup of coffee has a temperature of 200F. It is placed in a room that has temperature 70 F. After 15 minutes, the temperature of the coffee is 150F. a) Model the temperature of the cup of coffee at time t. b) How long will it take for the coffee to cool down to 100◦ F?
Suppose a cup of coffee is 160 degrees right after the coffee is poured. You are...
Suppose a cup of coffee is 160 degrees right after the coffee is poured. You are only comfortable drinking coffee when it cools to 120 degrees. You check after five minutes, and the coffee is still hot (135 degrees!). When will you be able to first comfortably sip the coffee? Note: The equation for Newton’s law of cooling is ?? = ? (? − ??); its solution is:T(t) = Ts + (T0 – Ts) e^kt. Assume the surrounding temperature is...
Calculate the pH of a 0.0322M KOH solution at each temperature. 0 degrees Celsius pH= 50...
Calculate the pH of a 0.0322M KOH solution at each temperature. 0 degrees Celsius pH= 50 degrees celsius pH= T (°C) Kw 0 1.15 × 10–15 5 1.88 × 10–15 10 2.97 × 10–15 15 4.57 × 10–15 20 6.88 × 10–15 30 1.46 × 10–14 35 2.07 × 10–14 40 2.88 × 10–14 45 3.94 × 10–14 50 5.31 × 10–14 100 5.43 × 10–13
In 1701, Issac Newton proved his Law of Cooling: T(t) =Aekt +Ta, which is an exponential...
In 1701, Issac Newton proved his Law of Cooling: T(t) =Aekt +Ta, which is an exponential model that relates the temperature of an object T as a function of time t (we will use minutes) that is placed in an environment with ambient temperature Ta. Suppose a cup of hot coffee is served at 160◦F and placed in a room with an ambient temperature 75◦. After 5 minutes, the cup of coffee has a temperature of 131◦F. a) Create a...
A coffee-cup calorimeter initially contains 125 g water at 24.2 degrees celsius. Ammonium Nitrate (10.5 g),...
A coffee-cup calorimeter initially contains 125 g water at 24.2 degrees celsius. Ammonium Nitrate (10.5 g), also at 24.2 degree celsius, is added to the water, and after the ammonium nitrate dissolves, the final temperature is 18.3 degrees celsius.What is the heat of solution of ammonium nitrate in kj/mol? Assume that the specific heat capacity of the solution is 4.18 J/Cg and that no heat is transferred to the surrounds or to the calorimeter.
A 210 degree cup of coffee is placed on a table in a climate-controlled room with...
A 210 degree cup of coffee is placed on a table in a climate-controlled room with the temperature set at a constant 73 degrees. After 6 minutes, the temperature of the coffee had dropped to 150 degrees. Find a function that outputs the temperature of the coffee t minutes after it is placed on the table.
A covered mug of coffee originally at 190 degrees Fahrenheit, if left for t hours in...
A covered mug of coffee originally at 190 degrees Fahrenheit, if left for t hours in a room whose temperature is 60 degrees, will cool to a temperature of 60 + 130e−1.7t degrees. Find the temperature of the coffee after the following amounts of time. (Round your answers to the nearest degree.) (a) 15 minutes °F (b) half an hour °F
The temperature, T, of a cup of tea is modelled by the function T = 21...
The temperature, T, of a cup of tea is modelled by the function T = 21 + 58.8(1.4)-x ,where T is measured in 0C (degrees Celsius) and x is measured in minutes. The time starts to be measured when the tea is poured into the cup.      1) Graph the function using technology. Include a graph in your response. 2) Find the temperature of the tea in the cup in 0C and 0F: a) when the tea is poured into...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT