Copper pellets are removed from oven
27 g of copper pellets are removed from a 300 degrees C oven and immediately dropped into 90 mL of water at 22 degrees C in an insulated cup.
What will the new water temperature be?
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a) If a mass of 2kg is attached to a string of length 1m and pulled back to the angle shown (30 degrees from straight down), what velocity will the mass have at the "bottom" of its swing?
Nitrogen flows without gain or loss of heat through a horizontal duct find the head loss in BTU/lb. The change in enthalpy between sections 1 and 2. (assume nitrogen is a perfect gas)
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What size pump is needed to raise water at the rate of 2 gallons/minute from a sump up to 30-ft to be discharged into a storm sewer?
27 g of copper pellets are removed from a 300 degrees C oven and immediately dropped into 90 mL of water at 22 degrees C in an insulated cup. What will the new water temperature be?
The momentum of a particle is given by m*v where m is the mass ofthe particle and v its velocity. The kinetic energy is givenby 1/2 m*v^2. Two particles have the same de-Broglie wave length, however the mass of the particle is larger than the mass
100 g of ice at 0 degrees C and 100 g of steam at 100 degrees C interact thermally in a well-insulated container. What is the final state of the system?
The water flow into the boiler can be assumed saturated liquid. The fuel capacity is 35 MJ/Liter and it costs 0.15 dollar per liter. How much will the kilowatt-hour cost?
An unseeded BOD test is conducted on a polluted surface water sample by adding 100 mL of the sample to a 300-mL BOD bottle and filling with dilution water.
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