A mass hung from a spring undergoes simple harmonic motion when displaced from its equilibrium position. Changing the quantity of the mass affects the period of oscillation of the system. Place two ...

After months of braving the cold winter, Bay State residents will have the beauty of spring to look forward to starting Tuesday. Spring officially starts on March 19 in Massachusetts and runs until ...

LINCOLN (CBS) -- Punxsutawney Phil and Ms. G are at odds again when it comes to the spring forecast. While the Pennsylvania groundhog saw his shadow on Wednesday and predicted six more weeks of winter ...