A what is the weight of air inside a spherical balloon
of radius 2 meters? The density of air is 1.29 kg /m^3
Spherical balloon​

The heliocentric and the geocentric models of the solar system included these central principles

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

What are the differences and relationships between speed, velocity, and acceleration