Find the rate of heat transfer to the rubble
The sun shines on a 500m^2 road surface at 50*c. Below the 5cm thick asphault with an average conductivity of 0.1 w/(mK) is a layer of compacted rubble at a temperature of 20*c. Find the rate of heat transfer to the rubble.
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An infinitely long line of charge has a linear charge density of 3.50×10^-12 C/m . A proton is at distance 13.0 cm from the line and is moving directly toward the line with speed 2200 m/s . How close does the proton get to the line of charge
Twenty grams of a solute is added to 100g of water at 25 degrees C. The vapor pressure of pure water is 23.76mm; the vapor pressure of the solution is 22.41mm.
Find the: initial volume, the temperature at which ammonia starts to vaporize, the approximate volume when it starts to vaporize, the final volume when the quality reaches 0.1
In one experiment, 0.865 mol of NO is mixed with 0.502 mol of O2. Determine which of the two reactants is a limiting reactant. Calculate also the no. of moles of NO2 produced.
Below the 5cm thick asphault with an average conductivity of 0.1 w/(mK) is a layer of compacted rubble at a temperature of 20*c. Find the rate of heat transfer to the rubble.
Calculate the freezing-point depression (Kf = 31.8K-kg/mol), the relative vapor-pressure lowering, the osmotic pressure of the solution at 25 C, and the molecular weight of the substance.
A freely moving piston holds in 10kg of water at a pressure 400kPa and volume 10m^3. The water is cooled to 400*c. Find the final pressure, the final volume and the heat transfer from water.
The total pressure of a mixture of oxygen and hydrogen is 1.4 bar. The mixture is ignited and the water removed. The remaining is pure hydrogen and exerts a pressure of 0.30 bar when measured at teh same values of T and V as the original mixture.
Find the potential energy of the weight at the top of the tower and what the velocity of the glider will be after the energy is transferred to it.
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