A bowling ball hits two standing bowling pins at the same time. Which of the following is true? Assume that all collisions are elastic. A. The momentum of the ball after the collision will equal the momentum of the ball before the collision.
B. The sum of the momentum of both pins after the collision will equal the momentum of the ball before the collision.
C. The momentum of each pin after the collision will equal the momentum of the ball before the collision.
D. The sum of the momentum gained by both pins will equal the amount of momentum lost by the ball.

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