Question: 1. On what does the total force exerted by a liquid on a horizontal surface depend? 2. Why must the thickness of a dam be

1. On what does the total force exerted by a liquid on a horizontal surface depend?

2. Why must the thickness of a dam be greater at the bottom than at the top?

3. Is the hydraulic piston in the master brake cylinder in an automobile larger or smaller than the piston in the brake cylinder at the wheels? Why?

4. Would a drinking straw work in space where there is no gravity? Explain.


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