Automotive manufacturer is testing the ignition system for the number of on/off switches. seven ignition devices were tested to failure with the following results: 10522, 14 232, 17 811, 21 762, 29 830, 39411 and 43 901 switches. using the software or weibull probability paper determine a)-the parameters of 2-parameter weibull distribution. b)-2-sided 90 % confidence on reliability of the system at 10 000 switches.

Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?

Different types of steels contain different elements that alter the characteristics of the steel. for each of the following elements, explain what the element does when alloyed with steel.

Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?