(1 point) newton's law of cooling states that the temperature of an object changes at a rate proportional to the difference between its temperature and that of its surroundings. suppose that the temperature of a cup of coffee obeys newton's law of cooling. let k> 0k> 0 be the constant of proportionality. assume the coffee has a temperature of 190 degrees fahrenheit when freshly poured, and 33 minutes later has cooled to 180 degrees in a room at 68 degrees.(a) write an initial value problem for the temperature t of the coffee, in fahrenheit, at time t in minutes. your answer will contain the uknown constant k : dtdt=equation editort(0)=equation editor(b) solve the initial value problem in part (a). your answer will contain the unknown constant k .t(t)=equation editor(c) determine the value of the constant kk=equation editorminutes.(d) determine when the coffee reaches a temperature of 150 degrees. equation editorminutes.
Answers: 3
Physics, 22.06.2019 06:00
Using a pedometer, you walk 3000 steps in 20 minutes, so your speed is 150 steps/min. each of your steps is 0.7 m long. what is your speed? 150 steps/min=/s=/h
Answers: 1
Physics, 22.06.2019 10:10
Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. the scale reads 830 n for the first 2.4 s after the elevator starts moving, then 930 n for the next 2.4 s. part a what is the elevator's speed 4.8 s after starting? express your answer with the appropriate units.
Answers: 2
Physics, 22.06.2019 11:30
If the textbook weighs 19.6 newtons on venus,what is the strength of gravity on venus?
Answers: 1
(1 point) newton's law of cooling states that the temperature of an object changes at a rate proport...
Mathematics, 19.10.2019 14:10
Chemistry, 19.10.2019 14:10
Mathematics, 19.10.2019 14:10
Business, 19.10.2019 14:10
Mathematics, 19.10.2019 14:10
Social Studies, 19.10.2019 14:10
Arts, 19.10.2019 14:10
History, 19.10.2019 14:10
Mathematics, 19.10.2019 14:10
Mathematics, 19.10.2019 14:10
Biology, 19.10.2019 14:10
Mathematics, 19.10.2019 14:20