# phys

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the 300-series shinkansen train of japan has aluminum cars, so that it can reach high speeds more easily. ten of the sixteen cars of a 300-series train have their own 300.0 kW motors, one for each of their four axles. What is the work done by one car's four motors during 25s?

• phys -

work= 300kw*10*4*25sec

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