Determining the final equilibrium temperature
A 0.335 kg iron horseshoe that is initially at 420°C is dropped into a bucket containing 20.3 kg of water at 22.1°C. What is the final equilibrium temperature (in °C)? Neglect any heat transfer to or from the surroundings. Do not enter units.
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a particle with spin 1 has orbital angular momentum l=0. what are the possible values for the total angular momentum quantum number j?
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To help keep his barn warm on cold days, a farmer stores 832 kg of solar-heated water (Lf = 3.35E+5 J/kg) in barrels. For how many hours would a 2.07 kW electric space heater have to operate to provide the same amount of heat as the water does, wh
Determine the max bending stress, deflection of the board, and the safety factor. Also, how much would the diver need to weigh to cause failure of the board?
A 0.335 kg iron horseshoe that is initially at 420°C is dropped into a bucket containing 20.3 kg of water at 22.1°C. What is the final equilibrium temperature (in °C)? Neglect any heat transfer to or from the surroundings. Do not enter
When you take a bath, how many kilograms of hot water (48.8°C) must you mix with cold water (13.6°C) so that the temperature of the bath is 36.5°C? The total mass of water (hot plus cold) is 193 kg. Ignore any heat flow between the wat
If the temperature of the rod increases by 70.4°C, calculate its increase in length. (Use 9.0×10-6 °C-1 for the coefficient of linear expansion for glass. Use this value to find the coefficient of volume expansion in the later parts o
At what temperature will H2 molecules have the same rms speed at O2 molecules have at 20oC? Solve this problem without claculating vrms for O2. Show all calculations.
The breaking strength X [kg] of a certain type of plastic block is normally distributed with a mean of 1500 kg and a standard deviation of 50 kg.
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