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# In Fig. 9-70, two long barges are moving in the same

## Problem 77 Chapter 9

Fundamentals of Physics | 10th Edition

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Fundamentals of Physics | 10th Edition

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Problem 77

In Fig. 9-70, two long barges are moving in the same direction in still water, one with a speed of 10 km/h and the other with a speed of 20 km/h. While they are passing each other, coal is shoveled from the slower to the faster one at a rate of 1000 kg/min. How much additional force must be provided by the driving engines of (a) the faster barge and (b) the slower barge if neither is to change speed? Assume that the shoveling is always perfectly sideways and that the frictional forces between the barges and the water do not depend on the mass of the barges

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GY 102 week 8 10/11/16 Components of the hydrologic cycle include surface and subsurface processes including infiltration, runoff, and related factors; watershed, and how spatial scale and drainage divides determine watershed boundaries. River basics. a. definition: Fluvial water- actively flowing, channelized water. It can connect to...

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