Q1 : A tank containing water move vertically with a constant linear acceleration ( az ) , and horizontal acceleration increased by Aa % from the vertical acceleration . The tank was ( L ) high , ( B ) length and ( W ) width . Determine the pressures on the bottom of tank if the water level at rest was ( H ) . Answer with sketch​

Along steel shaft of 10 cm diameter is austenised at 870°c and then quenched in a liquid at 30oc. the average surface heat transfer coefficient is 2000 w/m2. °c. the relevant thermophysical properties of the shaft are: p=7800 kg/m", k=20 w/mk, cp=0.46 kj/kg.k calculate: a)-the time required for the center temperature to drop to 200°c. b)-the temperature at half-radius at that moment. c)-the amount of heat that had been transferred to the liquid by that time per meter length of the shaft