2. Which statement(s) about star lifespans are true for stars A (1.2 times the size of the sun) and B (0.8 times the size of the sun? a) Star A will live longer than B b) Star A will live longer than the sun c) Star B will live longer than the sun d) Star B will live longer than A e) Stars A and B will have the same lifespan​

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