Aflexible container at an initial volume of 7.14 l contains 8.51 mol of gas. more gas is then added to the container until it reaches a final volume of 13.5 l. assuming the pressure and temperature of the gas remain constant, calculate the number of moles of gas added to the container.

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?

Wind and moving water provide energy. question 1 options: chemical mechanical thermal none of the above

What is the moment of inertia i of this assembly about the axis through which it is pivoted? express the moment of inertia in terms of mr