Select the correct answer. Which statement best explains acceleration?
ОА.
It Is the total distance covered over a period of time.
OB.
It is a change in velocity over a period of time.
O C.
It is a change in displacement over a period of time.
OD.
It is a change in direction over a period of time.
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Which statement supports the principle ideas of jean piaget's philosophy? adults should not interact with teachers. children are best educated through standardized training. adults do not think better than children, but they think differently. children should not form hypotheses until they are certain their findings will be correct.