Monthly Archives: January 2011

HW due 02/01

The materials that are used to build musical instruments are important because they vibrate at a specific frequency–a natural frequency.  All objects vibrate, but when the amplitudes of the vibration are large enough and the natural frequency is in the … Continue reading

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HW due 01/28

Sound waves, sometimes referred to as pressure waves, are mechanical waves that result from the back and forth vibrations of a particle through a medium.  The ear uses these longitudinal vibrations to determine sound.  There are two aspects of sound … Continue reading

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HW due 01/26

Constructive interference:  Constructive interference is when two sinusoidal waves, having the same displacement, exactly overlap each other to form one big wave (that is double the amplitude).  It only occurs when both waves are displaced upward or both are displaced … Continue reading

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HW due 01/24

Electrons have the tendency to vibrate at their own natural frequency.  When a light wave with the exact same frequency as the electron hits it, the interaction causes the electron to begin moving (while continuing to vibrate).  To do this, … Continue reading

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HW due 01/18

Once we collect our data, namely displacement and velocity, we can use several equations to determine the potential energy.  The first step to finding the potential energy is to find the kinetic energy of both carts as they move away … Continue reading

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HW due 01/13

Hey Ken, I figured it would be easier for me to insert my notes as a word doc because I tend to use symbols that the post doesn’t recognize.  Here they are: Notes

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HW due 1/11

The planet Earth formed approximately 4.6 billion years ago.  It was created when chunks of rocks and liquids, also known as planetesimals, were circling the Sun and collided.  When two collided, they melted together because the mass was so hot … Continue reading

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