Physics, 23.10.2019 19:00 scottbrandon653
How can submarines use echolocation to tell how close they are to the bottom of the ocean?
Answers: 1
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
Physics, 22.06.2019 14:00
How to tell if two objects are in thermal equilibrium 1.the objects have the same temperature 2.the objects are the same size 3.the objects are touching each other 4.the objects temperatures are changing
Answers: 1
Physics, 22.06.2019 14:30
In order to do work, the force vector must be question 1 options: in a different direction than the acceleration vector. in a different direction than the displacement vector. in the same direction as the displacement vector and the motion. in the same direction as the acceleration vector.
Answers: 1
How can submarines use echolocation to tell how close they are to the bottom of the ocean?...
History, 24.09.2020 01:01
Health, 24.09.2020 01:01
Mathematics, 24.09.2020 01:01
History, 24.09.2020 01:01
Physics, 24.09.2020 01:01
Health, 24.09.2020 01:01
Mathematics, 24.09.2020 01:01
Computers and Technology, 24.09.2020 01:01
History, 24.09.2020 01:01
Chemistry, 24.09.2020 01:01
History, 24.09.2020 01:01
Mathematics, 24.09.2020 01:01
History, 24.09.2020 01:01