When you press the push-button of the Random Number Generator, the 555 Timer oscillates at approximately 65 Hz. If you want the oscillation to start at 100 Hz, what value would you apply to C2?

Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.