Imagine a black disk shaped satellite in outer space is at an original tempof 0 Celsius, mass of 250 kg, radius of 20 meters and spinningat an initial rate of 2 rads/sec. How long will it take this satellite to reach a temperature 1 degree above the temperature of the Cosmic Microwave Background which is 2.7 Kelvin?What is the final radius of the disk after it has cooled down? What is the final spin rate? How much has the kinetic energy of the disk changed by? How much net heat was radiated to outerspaceduring this time? Cmetal= 500 J/kg, alpha= 11 x 10^-6
Show more
Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.
You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.
Read moreEach paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.
Read moreThanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.
Read moreYour email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.
Read moreBy sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.
Read more