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A 60-kg block of nickel at 5C and a 35-kg block of silver at 50C are placed in a very large lake where the water temperature is 25C. After some time has passed, thermal equilibrium between the lake water and the blocks is achieved as a result of heat transfer between each block and the lake water. Determine the total entropy change for this process.
a 0.3 kg bullet is fired into a 3.6 kg wooden block and becomes embedded in it. knowing that the block and bullet move
a carnot engine operates between temperatures of 700k and 400k and does 150 j of work in each cycle. what is the
suppose that your business is operating at the threesigma quality level. if projects have an average improvement rate
an airbus 310a with a mass of 140000 kg sits on a runway. it takes off and flies to an altitude of 10500 m with a speed
water flows as two free jets from the tee attached to the pipe shown below. thenbspexit speed is 15 ms. if viscous
What is the total force reaction (magnitude) at pin joint O when the square plate is released from rest? Assume the plate has a uniform thickness.
problem 1heat is being generated uniformly throughout a sphere at volumetric rate 4. the radius of the sphere is r and
Describe the four incorrect assumptions concerning robot - arm movement that are most frequently responsible for impact accidents.
at standard atmospheric temperature and pressure 25 c and 1 atm how many moles of dry air be present in a room having a
answer the following questions1. name six types of springs.2. name three types of gears.3. state hookes law.4. give the
Calculate the volume of water that is available for power generation at the extremes of spring and nap tides? If during the time the turbines are running, the level of the water in the bay is 2m higher that that in the sea, what is the potential ene..
at steady state air at 200 kpa 52 ordmc and a mass flow rate of 0.5 kgs enters an insulated duct having differing inlet
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