A van drives east across Colorado on 1-70. It took the van 8 hours to cross the state, which is 770 km wide. What was the van's average velocity?
a. 96.25 km/hr East
b. 770 mi/hr West
c. 6160 km/hr West
d. .01 mihr East

The transfer of heat through the movement of a gas or liquid a. convection b. conduction c. radiation

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

Which of the following is not a physical property of mattera. melting pointb. heat of combustionc. viscosityd. boiling point