![subject](/tpl/images/cats/fizika.png)
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Physics
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 19:40
You carry a 7.0-kg bag of groceries 1.2 m above the ground at constant speed across a 2.7m room. how much work do you do on the bag in the process? (a) 157j (b) 0.00j (c) 185j (d) 82j
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 06:20
Clothing made of several thin layers of fabric with trapped air in between, often called ski clothing, is commonly used in cold climates because it is light, fashionable, and a very effective thermal insulator. so it is no surprise that such clothing has largely replaced thickand heavy old-fashioned coats. (a) consider a jacket made of five layers of 0.1-mm-thick synthetic fabric (k = 0.13 w/m·°c) with 1.5-mm-thick air space (k = 0.026 w/m·°c) between the layers. assuming the inner surface temperature of the jacket to be 28°c and the surface area to be 1.25 m2, determine the rate of heat loss through the jacket when the temperature of the outdoors is 0°c and the heat transfer coefficient at the outer surface is 25 w/m2·°c. (b) what would your response be if the jacket is made of a single layer of 0.5-mm-thick synthetic fabric? what should be the thickness of a wool fabric (k = 0.035 w/m·°c) if the person is to achieve the same level of thermal comfort wearing a thick wool coat instead of a five-layer ski jacket?
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 09:30
Gasoline comes from petroleum, which is made from ancient living things. petroleum, therefore, contains a type of energy. a. heat b. nuclear c. biological d. chemical potential
Answers: 2
You know the right answer?
Compare and contrast the sound waves produced by someone whispering and someone shouting....
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 04.08.2019 03:00
![question](/tpl/images/cats/biologiya.png)
Biology, 04.08.2019 03:00
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/istoriya.png)
History, 04.08.2019 03:00
![question](/tpl/images/cats/mat.png)
Mathematics, 04.08.2019 03:00
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 04.08.2019 03:00
![question](/tpl/images/cats/mat.png)
Mathematics, 04.08.2019 03:00
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/health.png)
Health, 04.08.2019 03:00
![question](/tpl/images/cats/mat.png)
Mathematics, 04.08.2019 03:00
![question](/tpl/images/cats/biologiya.png)
Biology, 04.08.2019 03:10
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/en.png)
English, 04.08.2019 03:10
![question](/tpl/images/cats/mat.png)
Mathematics, 04.08.2019 03:10
![question](/tpl/images/cats/mat.png)
Mathematics, 04.08.2019 03:10