Physics, 08.01.2020 02:31 Adolfosbaby
How much greater is the light-collecting area of a 6-metermeter telescope than a 3-metermeter telescope?
Answers: 2
Physics, 21.06.2019 13:00
You are sitting on the beach and wondering about the properties of mechanical waves. describe them in terms of ocean waves.
Answers: 3
Physics, 22.06.2019 04:40
Argon is adiabatically compressed from an initial volume of 16 liters to a final volume of 2 liters. by what factor do the following quantities change? do they increase or decrease? (a) the rms speed (b) the thermal energy of the gas (c) the molar specific heat cv (d) the pressure
Answers: 3
Physics, 22.06.2019 05:30
Agas expands from an initial volume of 0.040 m^3 and an initial pressure of 210 kpa to a final volume of 0.065 m^3 while its temperature is kept constant. how much work is done by the system?
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
How much greater is the light-collecting area of a 6-metermeter telescope than a 3-metermeter telesc...
Chemistry, 26.10.2020 08:50
Mathematics, 26.10.2020 08:50
History, 26.10.2020 08:50
Chemistry, 26.10.2020 08:50
Social Studies, 26.10.2020 09:00
World Languages, 26.10.2020 09:00
Chemistry, 26.10.2020 09:00
Mathematics, 26.10.2020 09:00
Mathematics, 26.10.2020 09:00
History, 26.10.2020 09:00
English, 26.10.2020 09:00
Mathematics, 26.10.2020 09:00