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Masses and Springs
Author:
Dave Nero
Link to Simulation
(requires flash) Credits: PhET Interactive Simulations University of Colorado Boulder
https://phet.colorado.edu
New Resources
Perimeter of a Rectangle with Unknown Sides
Tracing an Ellipse Using Two Circles
רישום חופשי
巧算長方形周界
Rolling a Square
Discover Resources
Mike
quad-eqn1
Portfolio 2
Turchia-Kai - Circonferenza goniometrica
EM 2010 P1 Q23
Discover Topics
Isosceles Triangles
Confidence Interval
Scatter Plot
Unit Circle
Ratios