Help Please! Four identical springs are attached to a stopper as shown. In the uncompressed case and cases 1-3, a force is applied to compress to the spring and hold it at rest. The given spring lengths and applied forces are shown. Determine the spring force, spring constant and stretch length in each case. Note: Drawing is not to scale.
Answers: 3
Physics, 22.06.2019 06:20, jonmorton159
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 08:00, Savageboyn
Gather reliable information to brent make his decision. to gather this information, use newspapers, call insurance companies or look at their web sites, and review consumer magazines and web sites. also, look at the manufacturer web site or for information about gas mileage. list the sources you use and take notes.
Answers: 1
Physics, 23.06.2019 13:00, ceeejay0621
Does a energy transformation happen when you drop your pencil
Answers: 1
Physics, 23.06.2019 21:50, mrflexington77
The four major attractive forces between particles are ionic bonds, dipole-dipole attractions, hydrogen bonds, and dispersion forces. consider the compounds below, and classify each by its predominant attractive or intermolecular force among atoms or molecules of the same type. drag each item to the appropriate bin.
Answers: 1
Help Please! Four identical springs are attached to a stopper as shown. In the uncompressed case and...
English, 19.12.2020 03:30
Chemistry, 19.12.2020 03:30
Mathematics, 19.12.2020 03:30
Chemistry, 19.12.2020 03:30
History, 19.12.2020 03:30