Astar with a spectral classification of f7 emits the ultraviolet photons needed to ionize hydrogen. t/f

Does baby oil have a high or low velocity?

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.

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.