A hydraulic lift raises a 2000-kg automobile when a 500-N force is applied to the smaller piston. If the smaller piston has an area of 10 cm2, what is the cross-sectional area of the larger piston?
A. 40 cm2
B. 80 cm2
C. 196 cm2
D. 392 cm2
E. 160 cm2
Answer: D
Physics & Space Science
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At what angle above the horizon would the sun appear if its reflected light from a lake, viewed at the same time, were completely polarized? (n water = 1.333)
A. 53.12 
B. 36.88 
C. 48.75
D. 41.25
E. 23.52
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The majority of the mass of the Milky Way lies farther out than the Sun's orbit
Indicate whether the statement is true or false
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Electric potential is the ratio of electric energy to the amount of electric
A) current. B) resistance. C) charge. D) voltage. E) none of the above
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Why does quartz sandstone have a high porosity and a high permeability?
What will be an ideal response?
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