Which option accurately describes an unbalanced force?

a. a 2-n force presses down on the cement block at the same time as a 1.5-n force presses up on the cement block.

b. the force of a house pressing down on its foundation of cement blocks is 3,000 n.

c. each cement block supports a 2-n force, but when the foundation is built in a staggered pattern, it can support 2,000 n.

d. three rows of cement blocks form a foundation for a house, and the house rests on this foundation.

Which statement is true according to the kinetic theory? a. molecules of different gases with the same mass and temperature always have the same average density. b. molecules of different gases with the same mass and temperature always have the same average volume. c. molecules of different gases with the same mass and temperature always have the same pressure. d. molecules of different gases with the same mass and temperature always have the same molecular mass. e. molecules of different gases with the same mass and temperature always have the same average kinetic energy.