Merge pull request #1023 from d-torrance/fluid-forces

Clarify instructions for fluid force integral application problems

Author: gajennings

OpenProblemLibrary/Michigan/Chap8Sec5/Q27.pg

@@ -61,7 +61,7 @@ BEGIN_TEXT
 Set up and calculate a definite integral giving the total force on
 the dam shown in the figure below, if the width \(w = $wid\) m, height
 \(h = $hei\) m, and base width \(b = $bas\) m, which are approximately
-the dimensions of the Aswan Dam in Egypt. Use \(g=9.8\hbox{ m/s}^2\).
+the dimensions of the Aswan Dam in Egypt. Use \(\rho=1000\hbox{ kg/m}^3\) and \(g=9.8\hbox{ m/s}^2\).
 
 $PAR
 $BCENTER

OpenProblemLibrary/UMN/calculusStewartET/s_8_3_prob01.pg

@@ -54,7 +54,7 @@ $BBOLD 1. $EBOLD Find the hydrostatic pressure at \($dep\text{m}\). $BR
 Answer (in Newtons per sq. meter): \{ans_rule(20) \} $PAR
 $BBOLD 2. $EBOLD Find the hydrostatic force on a square steel plate with sides \($wid\text{m}\) placed horizontally. $BR
 Answer (in Newtons): \{ans_rule(20) \} $PAR
-$BBOLD 3. $EBOLD Find the hydrostatic force on a square steel plate with sides \($wid\text{m}\) placed vertically. $BR
+$BBOLD 3. $EBOLD Find the hydrostatic force on a square steel plate with sides \($wid\text{m}\) placed vertically so that the bottom is at \($dep\text{m}\). $BR
 Answer (in Newtons): \{ans_rule(20) \}
 $HR
 END_TEXT