4. Coffee at temperature 180°F is cooling in a room with constant temperature75°F. If it takes for the coffee temperature to reach 155°F after 5 minutes, whatadditional time is needed for the coffee to cool to 130°F?5. A thermometer reading 70°F is placed in an oven preheated to a constanttemperature. Through a glass window in the oven door, an observer recordsthat the thermometer reading reads 110°F after half-minute and after oneminute 145°F. How hot is the oven?6. At 2:00 pm. a thermometer reading 80°F is taken outside where the airtemperature is 20°F. At 2:03 pm. the temperature reading yielded by thethermometer is 42°F. Later, the thermometer is brought inside where the air is80°F. At 2:10 pm. the reading is 71°F. When was the thermometer broughtindoors? 7. An inductance of 2 henry and a resistance of 10 ohms are connected in serieswith and electromotive force of 100 volts. Determine a) the current i as a functionof time t b) what is the current at the end of 0.1 second?8. A variable resistance R=n and a capacitance of Sal0ʻ farads areconnected in series wit an electromotive force of 100 volts. If g(0) = 0 what is thecharge on the capacitor afteri minute?9. An inductance of 1 henry and a resistance of 2 ohms are connected in series withbattery of 6e-.000 volt.. No current is flowing initially. When will the currentmeasure 0.5 ampere?10. A 600 gallons brine tank is to be cleared by piping in pure water at 1 gal/min.,and allowing the well-stirred solution to flow out at the rate of 2 gal/min. If thetank initially contains 1500 pounds of salt, a) how much salt is lett in the tank after1 hour? b) after 9 hours and 59 min?

We have to find rate of decrease for given situation.

Answered: 4. Coffee at temperature 180°F is…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

6. The height h, in feet, of a model rocket t seconds after launch is given by h = 256t-16r². As the rocket descends, it deploys a recovery parachute when it reaches 200 ft above the ground. At what time does the parachute deploy?
This question has several parts that must be completed sequentially. If you skip a part of the question, you will not receive any points for the skipped part, and you will not be able to come back to the skipped part.If a tank holds 4000 gallons of water, which drains from the bottom of the tank in 50 minutes, then Toricelli's Law gives the volume V of water remaining in the tank after t minutes as the following. Therefore, when t = 5, the rate at which the water drains is V'(5)
20. Thomas measured the amount of water in a tank during a drought. For the first 3 weeks, the water in the tank evaporated at a rate of 3 inches per week. Over the next 4 weeks, the water evaporated at a rate of 2 inches per week. What is the change in height of the water in the tank over the 7 week period? (TEKS 6.3D, RS, RC2) F. -17 inches G. -5 inches H. -12 inches J. 12 inches
On a hot Saturday morning while people are working inside, the air conditioner keeps the temperature inside the building at 22"C. At noon the air conditioner is turned off, and the people go home. The temperature outside is a constant 32°C for the rest of the afternoon. If the time constant for the building is 5 he, what will be the temperature inside the building at 2:00 PM? AL 6:00 PM? When will the temperature inside the building reach 24°C? At 2:00 PM., the temperature inside the building will be about "C. (Round to the nearest tenth as needed.)
2. Two containers A and B contain different liquids which are kept at a constant temperature. The temperature of the liquid in containers A and B are 0° C and 100° C, respectively. A metal bar at 100° C is initially put into container A. After one minute, the temperature of the metal drops to 90° C. Determine the temperature of the metal after two minutes in container A b. After two minutes, the metal is transferred to container B. One minute later, the temperature of the metal increases by 10° C. Determine the total time required from the start of the process for the metal to reach 95° C.

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS

4. Coffee at temperature 180°F is cooling in a room with constant temperature 75°F. If it takes for the coffee temperature to reach 155°F after 5 minutes, what additional time is needed for the coffee to cool to 130°F?