1) a) Find a plane model for the connected sum of two tori: T#T = 2 T. b) Draw an arbitrary closed curve on the torus that does not bound a disk on the torus. Depict this curve on the plane model of the torus.
c) Draw a correspondent closed curve on 2 T. Depict this curve on the plane model of 2 T.
2) Does the surface n T have the fixed point property?

Oxygen and hydrogen gas are at the same temperature t.what is the ratio of kinetic energies of oxygen molecule and hydrogen molecule if oxygen is 16 times heavier than hydrogen.

Aperson walks first at a constant speed of 4.89 m/s along a straight line from point a to point b and then back along the line from b to a at a constant speed of 2.95 m/s. what is the average speed over the entire trip?

Rank the six combinations of electric charges on the basis of the electric force acting on q1. define forces pointing to the right as positive and forces pointing to the left as negative. rank positive forces as larger than negative forces. q1,q2,q3 = positive(+) q1 = + q2 = + q3 = - q1 = + q2= - q3= + q1= - q2= + q3= + q1= + q2= - q3= - q1,q2,q3 = negative