3.) what kind of force is demonstrated between surfaces moving past each other

a.) tension
b.) buoyant
c.) friction
d.) drag

According to the law of conservation of mass, in a chemical reaction the total starting mass of all the reactants equal the total final mass of all the products. true or false?

Jessie ran 5000 meters from the cops and an average speed of 6 meters / second before he got caught . how long did he run?

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