Three substances, in different states of matter, are placed in containers. Which of the following statements is TRUE?

A
The molecules in substances A and B are able to move past each other.
B
Substance C can be compressed into a smaller volume.
C
All three substances will maintain the same shape when their containers are changed.
D
The volume of substance B will remain the same as pressure increases.

As a car drives with its tires rolling freely without any slippage, the type of friction acting between the tires and the road is 100) a) static friction. b) kinetic friction. c) a combination of static and kinetic friction. d) neither static nor kinetic friction, but some other type of friction. e) it is impossible to tell what type of friction acts in this situation.

Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2