Normal curve approximation
A pair of dice is rolled 270 times. using the normal curve approximation, what is the probability that a total of 7 occurs?
A. at least 52 times?
B. between 41 and 63 time inclusive?
C. exactly 36 times?
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The inside temperature of the firebrick layer was measured at 600 C and the temperature of the outside of the insulation at 60C. What is the temperature drop across the steel layer?
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Determine the pressure in bars and the enthalpy, in kJ/kg, at state 2. Determine the temperature, in degrees Celsius, and the enthalpy at state 3.
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