What is the force needed to move a boy and his wheelchair with a combined mass of 30kg at 0.4 meters per square second

The force needed to move a boy and his wheelchair with a combined mass of 30kg at 0.4 meters per square second is 12 newton.

Explanation:

videntify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.

the answer is b.) hydrogen bonds between bases.