Convert 2.5 days to seconds. convert 35 km to millimeters. convert 43 cm to kilometers. convert 22 mg to kilograms. convert 671 kg to micrograms.

Which explanation describes the forces involved for a person to walk down the sidewalk? a. the person's feet push backward on the sidewalk; the sidewalk pushes backward on the person. b. the person's feet push forward on the sidewalk; the sidewalk does not push on the person. c. the person's feet push backward on the sidewalk; the sidewalk pushes forward on the person. d. the person's feet push forward on the sidewalk; the sidewalk pushes forward on the person.

Aphysical change is a change in the size, shape,, or stafe of matter true or false

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