7. A car that moves at 4.0 m/s for 5.0 seconds. What is the displacement? Please help with 7!! Ignore 8 (:

I need help, can someone explain this??

(Help with 8 if possible but it’s fine if not)

unlike poles attract

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.