A hot object cools down according to Newton's Law so that t hours after the start, the rate that heat leaves is 57−/3 Joules per hour. How much heat leaves the object during the first 7 hours? [All you need to know is that a Joule is a quantity of heat. In fact, 4.2 Joules is the heat required to raise 1 gram of water 1 degree Celcius]
Answers: 2
![H = -57\times 3 [e^{-t/3}]_0^7](/tpl/images/0510/9147/eb970.png)
![H = -171[e^{\dfrac{-7}{3}}-e^{0}]](/tpl/images/0510/9147/7b4a1.png)
Another question on Physics
Physics, 22.06.2019 11:40
Consider the following position function. find (a) the velocity and the speed of the object and (b) the acceleration of the object. bold r left parenthesis t right parenthesisr(t)equals=left angle 6 t superscript 4 baseline comma 2 t cubed right angle6t4,2t3 for tgreater than or equals≥0
Answers: 3
Physics, 22.06.2019 15:20
Your science teacher brings in a speaker to talk to your class about climate change. during the session, students ask a few questions. which questions are related to the current evidence on climate change
Answers: 3
Physics, 22.06.2019 22:30
Determine the net charge of the predominant form of arg at (a) ph 1.0, (b) ph 5.0, (c) ph 10.5, and (d) ph 13.5
Answers: 2
You know the right answer?
A hot object cools down according to Newton's Law so that t hours after the start, the rate that hea...
Questions
English, 25.08.2019 17:30
Chemistry, 25.08.2019 17:30
English, 25.08.2019 17:30
Mathematics, 25.08.2019 17:30
Mathematics, 25.08.2019 17:30
History, 25.08.2019 17:30
Mathematics, 25.08.2019 17:30
Health, 25.08.2019 17:30
Social Studies, 25.08.2019 17:30
English, 25.08.2019 17:30
