In a heat-treating process, a 1-kg metal part, initially at 1075 k, is quenched in a tank containing 100 kg of water, initially at 295 k. there is negligible heat transfer between the contents of the tank and their surroundings. the metal part and water can be modeled as incompressible with specific heats 0.5 kj/kg-k and 4.2 kj/kg-k, respectively. determine (a) the final equilibrium temperature after quenching, in k, and (b) the amount of entropy produced within the tank, in kj/k
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A17,250 kg rocket is pushed with a thrust of 6,450,284 n. what is the acceleration of the rocket?
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Along wire carrying a 4.2 a current perpendicular to the xy-plane intersects the x-axis at x=β1.7cm. a second, parallel wire carrying a 3.0 a current intersects the x-axis at x=+1.7cm. part a at what point on the x-axis is the magnetic field zero if the two currents are in the same direction? express your answer to two significant figures and include the appropriate units.
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Physics, 22.06.2019 18:30
Asmall 12.00g plastic ball is suspended by a string in a uniform, horizontal electric field with a magnitude of 10^3 n/c. if the ball is in equilibrium when the string makes a 30 Β° angle with the vertical, what is the net charge on the ball?
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In a heat-treating process, a 1-kg metal part, initially at 1075 k, is quenched in a tank containing...
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