When may a scientific theory be revised? never, once it has been published

when a single experiment’s data goes against it

when a new hypothesis provides a better explanation

after a large amount of data refutes it

Johnny rode his bike 4 blicks down the street to his friend's house once he got to his friend house and realized he could not cone out to play he turned aroubd and went back home.what is displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point