Two boys weighing 60 N and 70 N sit on a see-saw. The boy weighing 60 N sits on the left side of a seesaw at a distance of 1m from the pivot while the other boy sits on the right side at a distance of 1.2 m. What distance must a third boy of weight 80 N sit on the left side in order to balance the see-saw?

Asquare 1m x 1m plate is shown below. all four of its edges are kept at 0 co. at t=0the temperature distribution is given by: y xtsins n75)=.a) using separation of variables determine the temperature distribution t(x, y,t)along the plate at any time t. b) discretize the heat conduction equation +=22222 txtusing a second-order centered difference scheme for the two second derivatives and a first-order forward euler scheme for the first derivative. using von neumann stability analysis, determine the stability criterion for the proposed discretization scheme in terms of , hand t. solve for the maximum allowable time step tmax