một vật có khối lượng 2kg chuyển động từ điểm A(1m, -3m, 5m) đến điểm B(2m, 0,-4m).Lấy g=10m/s. Công của trọng lực tác dụng lên vật trong quá trình chuyển động là

Select all that applywhat are some basic resources a family is expected to provide for children? educationclothesspending

In which of the following is positive work done by a person on a suitcase

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