Simple+Harmonic+Motion+Collaborative+Page

= Welcome to the Simple Harmonic Motion Collaborative Page =

===Waves are an integral part of physics. Our best understanding of the universe today hinges on a theory known as Quantum Mechanics. The theory makes many bold statements about our world, especially in terms of how things work at very small scales. Quantum mechanics is very accurate at predicting the behavior of very tiny things like particles and space-time itself. Large things such as human beings and planets are constructed by tiny things such as particles, so some physicists believe that understanding physics on very small scales is critical for understanding physics on very large scales.=== ===One of the biggest/ strangest ideas proposed by Quantum Mechanics is that everything has a wavelength. In other words, all particles, including protons and neutrons are not just particles, they are also waves. This simple idea has huge implications, many of which seem crazy.===

5. By extending these ideas, there is a minute possibility that you could actually walk right through a wall.
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Mr.Brehmer
Bungee Jumping is all about physics, heck, even the wikipedia page uses terms like oscillation and energy dissipation. I could only describe bungee jumping as a leap of faith off of an impossible height while attached to a glorified rubber band. Sounds like a party. Now the type of thrill seeking people who would love an oppurtunity such as this probably wouldn't be a physics loving kind of person, but their owe their lives to simple harmonic motion .... and the right length of rubber band.

Okay, now picture that you are standing on a platform, there is quite the wind because you are over 200 metres in the air, you have been safely secured to your bungee cord and are prepared to make your leap. You fall forward and your stomach seem to fly to your feet, as you are falling head first to the ground. You close your eyes, partly from the wind, mostly from the fear-filled exhilaration that you are experiencing. You feel a bit of tension pulling at you from your harness, as you slow down and for a slit second you stop before being launched upwards again. At this farthest downward position, the restoring force of the bungee cord overpowers to force of gravity acting onto your body causing a net force upward. You fly up until again you feel yourself slowing, once more there is a split second pause in your movement. At this point the cord does not have enough of a restoring force to win the fight again the force of gravity on your body. You continue to bounce there in an up and down, oscillating, until you stop moving. The forces are perfectly balanced at this equalibrium position.

Now to apply this physics, you are about to dive off of the Macau Tower, which is the worlds highest commercial bungee jump at 233m. You have a mass of 70kg. What is the spring constant on the bungee cord?

Fs = Fg = mg = (70kg)(9.81) = 686.7 N

Fs = -kx __686.7 N__ = __-k (-233m)__ 233 233 k = 2.9472103 N/m k = 2.9 N/m

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Maria Makepeace

We all know that Mr. B is going to try everything he can do to try and beat me in a boxing match. Even though it a lost cause i know he has already gone out and purchases the Shake weight to try an slim down.

If the shake weight has a frequency 4Hz persecond (240Hz / 60s) and a peroid of 0.25s (T=0.25s) travels at a speed of 20m/s ,what is the wavelength of the Shake weight travel?

v=fλ λ=v/f λ=0.50 m/s/ 4Hz λ= 0.125m

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