agrant20 agrant20

03-04-2017
Physics

contestada

A car drives from east to west over a bridge supported at either end by two pillars. The bridge and car weight is 80 tons. One pillar is pushing up with a force of 30 N. What force is applied to the bridge at the other pillar?

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lickitgood1 lickitgood1

03-04-2017

An isotope of an element has:

A.) more protonsB.) less protonsC.) a different atomic mass
D.) he same number of neutrons

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