HELP PLEASE Highlight the correct sentences. (hint there are 2 of each).

1. Jupiter is more dense than Earth because it is bigger.

2. A balloon is less dense than a basketball because it would have less mass if they were the same size.

3. If two items are the same size and have the same mass, then they have the same density.

4. Density has nothing to do with mass.

What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?

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

A10-kg piece of aluminum sits at the bottom of a lake, right next to a 10-kg piece of lead, which is much denser than aluminum. which one has the greater buoyant force on it? explain. b - the aluminum a) both have the same buoyant force. b) the aluminum c) the lead d) it cannot be determined without knowing their volumes.