Afireclay brick slab [α=5.4x10^-7m^2/s, and k=1w/m.°c] 10cm thick is initially at a uniform temperature of 350°c. suddenly one of its surfaces is subjected to convection with a heat transfer coefficient of 100w/m².°c into an ambient at 40°c. calculate the temperature at a depth 1cm from the surface 2min after start of cooling.

When using the ohmmeter function of a digital multimeter, the leads are placed in what position relative to the component being tested? a. parallel b. control c. series d. line

Aplate clutch has a single pair of mating friction surfaces 250-mm od by 175-mm id. the mean value of the coefficient of friction is 0.30, and the actuating force is 4 kn. a) find the maximum pressure and the torque capacity using the uniform-wear model. b) find the maximum pressure and the torque capacity using the uniform-pressure model.

Carbon dioxide gas expands isotherm a turbine from 1 mpa, 500 k at 200 kpa. assuming the ideal gas model and neglecting the kinetic and potential energies, determine the change in entropy, heat transfer and work for each kilogram of co2.