Which scientist refined newton’s ideas of space and motion to apply them to the subatomic level? a. tycho brahe b. albert einstein c. johannes kepler  d. robert hooke

Let f(x) = x4- 8x2 . find the relativeextrema of this function using the second derivative test.

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Use the profile illustrated for problem (1). assume that the layer of silty sand fill (sm) is placed over the entire site. estimate the thickness of the fill (h - in feet) that will cause the effective vertical stress at the center of the clay layer to increase by 517.5 pounds per square foot.