2. Determine the units of the quantity described by each of the following combinations of units:
a. kg (m/s) (1/s) b. (kg/s) (m/s)
c. (kg/s) (m/s) d. (kg/s) (m/s)

Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.

Why does lightning travel from clouds to the ground?

Which magnetic property best describes a magnet’s ability to act at a distance? magnets are dipolar. magnets attract only certain objects. magnets have magnetic fields. magnets can transfer their properties to certain materials.