When you walk, you push against the floor, and
a. the floor needs to be frictionless.
b. the floor pushes back against you.
c. the floor doubles your momentum.
d. your shoes store momentum.

The wilson chamber is used to study: direction, speed, and distance of radioactivity the intensity of radiation the appearance of individual atoms all of the above

13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.

Which of these is an intensive property of a substance