Calculate the heat flux (in w/m^2) through a sheet of a metal 14 mm thick if the temperatures at the two faces are 350 and 140°c. assume steady-state heat flow and that the thermal conductivity of this metal is 52.4 w/m-k. (b) what is the heat loss per hour (in j/h) if the area of the sheet is 0.42 m2? (c) what will be the heat loss per hour (in j/h) if a material with a thermal conductivity of 1.8 w/m-k is used? (d) calculate the heat loss per hour (in j/h) if the first metal is used and the thickness is increased to 24 mm.

What are the theoretical properties of a gas at a temperature of 0 kelvin?

What elements are found in the inner and out core of the earth? the correct layers of earth's interior from the top to the center? what is the unwanted material that is removed from a mine called? how much stronger is an earthquake that registers 5 on the richter as opposed to 2? what occurs at a convergence plate boundary? the majority of the the earth's rock what is the most common element found in the earth's crust? what element is found in pyrite that contributes to acid mine drainage? why must mining companies post bond prior to permitting? how are bacteria being used in treating effluent from mines? what is a problem of acid mine drainage in rivers and soils? what do tectonic plates move on? why is gold smelting so damaging? how are artesian wells formed? where is dammed water colder than the river it flows into? what is one of the problems of uncontained aqueducts? what is the largest use of industrial water? underground sand and gravel formations that can store water? what type of water test measure acidity? which type of water test for cloudiness from suspended solids? what water test measures the amount of calcium and magnesium? these are all problems of coal power plants all of the following are advantages of riparian lands along rivers what type of water would be the warmest and have the least amount of dissolved oxygen? the zone of aeration is

An ideal otto cycle has a compression ratio of 10.5, takes in air at 90 kpa and 40°c, and is repeated 2500 times per minute. using constant specific heats at room temperature, determine the thermal efficiency of this cycle and the rate of heat input if the cycle is to produce 90 kw of power.