document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1141494>Question 1141494</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A fish is caught in a water wheel.  A graph of its height (in metres) with respect to the surface of the water over time is shown below.<BR>\n" );
document.write( "https://snag.gy/jFuUZK.jpg <BR>\n" );
document.write( "a) What is the diameter of the water wheel?<BR>\n" );
document.write( "b) How long does it take the fish to complete one revolution of the wheel?<BR>\n" );
document.write( "c) Does the fish reenter the water?  If so, for approximately how long?<BR>\n" );
document.write( "d) After 36 seconds, at what height will the fish be? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #762123 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=762123\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (a)<BR>\n" );
document.write( "Diameter of the wheel is twice the amplitude<BR>\n" );
document.write( "of the sine wave <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+6+%2B+2+=+8+ ALIGN=MIDDLE  ALT=\"+6+%2B+2+=+8+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(b)<BR>\n" );
document.write( "The period ( 1 revolution ) can be measured<BR>\n" );
document.write( "from peak to the next peak <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+12+-+4+=+8+ ALIGN=MIDDLE  ALT=\"+12+-+4+=+8+\"   DISABLED_style= \"max-width:90%; height:auto;\" > s<BR>\n" );
document.write( "(c)<BR>\n" );
document.write( "About 3 sec each cycle is below the <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+h=0+ ALIGN=MIDDLE  ALT=\"+h=0+\"   DISABLED_style= \"max-width:90%; height:auto;\" > line<BR>\n" );
document.write( "(d)<BR>\n" );
document.write( "When <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t=0+ ALIGN=MIDDLE  ALT=\"+t=0+\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+h+=+-2+ ALIGN=MIDDLE  ALT=\"+h+=+-2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "4 cycles later, at <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t=32+ ALIGN=MIDDLE  ALT=\"+t=32+\"   DISABLED_style= \"max-width:90%; height:auto;\" >, the height is -2 again<BR>\n" );
document.write( "In 4 more sec, at <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+=+36+ ALIGN=MIDDLE  ALT=\"+t+=+36+\"   DISABLED_style= \"max-width:90%; height:auto;\" >, the height is maximum<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+h+=+6+ ALIGN=MIDDLE  ALT=\"+h+=+6+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );