800 lb space probe is launched from Earth, headed for deep space. a) List the correct equation and solve for mass given that the acceleration of gravity is 32.2 ft/s2

b) At a distance of 15,000 miles from the Earth's center, the space probe releases a payload that reduces the mass of the space probe by 1/4th (i. e., space probe is now 25% lighter in mass). By how much did the gravitational force go up or down after the payload has been released? Start with the equations from the text or class notes and solve.

Which of the following are appropriate acceleration units?

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

Macy always thought there were only a few hair colors blonde brown and black however when she actually began looking around she saw varying shades of these hair color what is a possible reason for so many different hair colors