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A 15-kg block of ice is cooled to -100 oC and is then added to 8.00 kg of water in a 10-kg copper calorimeter at a temperature of 25 oC. cw = 4186 J/kg oC, ccu 387 J/kg degree Ccice = 2090 J/kg oC, Lf ice = 3.33 x 105 J/kg. Assume the system (ice, water, and copper) is isolated.
a. Find the mass of the ice that was melted (if no ice melted, then report 0).
b. Find the mass of the water that froze (if no water froze, then report 0).
c. Determine the final temperature of the system.
d. Calculate the change in entropy of the system.
A 920 kilogram sports car collides into the rear end of a 2500 kilogram SUV stopped at a red light. determine the speed of the sports car at impact
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Using the equations from # 2 and # 3 above, and the equation I = I0 e-μd, derive the equation for the ratio of sensitivity of two films (call them 1 and 2) as a function of tube voltage, tube current, source-to-film distance, exposure time, and li..
Ultrasound intensity level: Beta = 10Log (I2/I1), I1 and I2 = intensity at different locations/times An ultra sound signal is sent under sea water (v=1530m/s) to detect the location of an object. Determine the location of the object from the source
Two Conducting spheres carry charges of -15 mu C and +45 mu C. are brought into contact and then separated to a distance of 10 cm. Determine the magnitude of the force that each sphere flow experiences.
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