When plugging in metric facts, always remember that 1 big unit = # small units. Fill in these facts: 1. s= μs 2.1 g = 0.001 kg 3. km = m 4.mm = m 5.mL = L 6.g = dg 7.cm = m 8.ms = s

A12-kg bag of groceries is tossed onto a table at 4.0 m/s and slides to a stop in 2.2 s . modify the equation fδt=δ (mv) to find the force of friction.

Give one example to show that when substances are mixed, it may result in a chemical or a physical change depending on the conditions.

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