4. A horizontal beam 4.8m long of mass 18kg is supported by pillars 0.2m from each end. There is man of mass 85kg standing 1.7m from one end of the beam. Overleaf draw a diagram showing the forces
acting on the beam in this equilibrium condition. Calculate the magnitudes of the loads carried by
each support.

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false

The drive force for diffusion is 7 fick's first law can be used to solve the non-steady state diffusion. a)-true b)-false

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?