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About aweld98

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  1. aweld98

    Calculus Pup

    I just returned from a calc group session at school with my friends and our calculus teacher. My friend, in an attempt to make Taylor Polynomials and series less of a burden, brought along her little dog. Ironically, as I was sitting there, the pup inspired what I am afraid will be my final blog post of my AP Physics C year. Well, my friend had gotten up from her seat, and the dog, which was tied by a leash to the chair, wanted a change of scenery. As a result, she attempted to jump onto the very chair which she was tied onto. However, as soon as her paws came in contact with the chair, s
  2. aweld98


    As a kid, I was always at my neighbor's house because they always had the newest and coolest trampoline. Turns out that this cool contraption requires many physics concepts in order to work. The energies required for a spring are kinetic energy, gravitational potential energy, and spring potential energy. When you bend your knees in order to take your first jump, you are using your gravitational force downward in order to compress the spring in the trampoline (work from your knees is transferred into spring potential energy). Then the spring releases, and the potential energy transfers into
  3. Since I am a ballet dancer, it would be fair to mention one of the most impressive ballet moves performed: the grand jete. For non-dancers, this move can be described as a "split like jump"; the dancer takes off by extending one leg into the air and taking off into a projectile type motion. In the best case scenario, the ballerina hits a perfect split at the peak of her parabolic path, creating a split second mesmerizing image for the audience to enjoy. In order to complete this leap, several physics ideas must be thought of and considered carefully. First off would be the gathering of energ
  4. aweld98


    A very useful device for many instrumentalists and musicians, in particularly string players, is a metronome. A mechanical metronome is a box like object that produces a steady beat. A musician sets this beat based on the tempo marking of the piece which they are practicing, and then the beats produced by the metronome help the musician to play at a steady pace and to avoid rushing or slowing. So, how does a metronome work? Well, from the outside, a metronome actually appears like an upside down pendulum; at the top there is a weight which is attached to the bottom of the box by a long rod. T
  5. Unless you are living under a rock, you would know that March Madness and the beloved basketball season are officially coming to a close. As sad as this end may be for some die hard basketball fans, it should be noted that the sport of basketball (like most other things in our world) is possible only due to the presence of physics. While there are many possible applications of physics, from the friction between the shoes of the players and the court, to the tension (or lack thereof) in the strings of the basketball hoop, I would like to draw attention to the most important part of the game:
  6. At first glance, this blog post may appear to be about the physics behind a large civil structure on which vehicles and human beings move across. However, that is not the case. This post is about the importance and purpose of a bridge in the structure and function of a violin, as well as the impact a mute has on a violin's performance. On the violin, the bridge is a wooden structure perpendicular to the rest of the violin; it sits atop the wooden face of the violin, and the four strings lie across the top of it. The purpose of the bridge is to transmit the vibration of the four strings int
  7. One of my favorite activities as a young kid was to play on the playground; I loved the monkey bars and slides, but one of my all time favorite thing to do would be to swing on a swing. Swings give the sensation of flying, which is probably why I loved them so much. Ironically, the way a swing works happens to revolve a lot around the conservation of energy. Think about it: In order to start swinging, someone has to either give the swing a push, or the swinger must kick themselves off of the ground. As one swings back and forth, they must continue to pump their legs because otherwise they
  8. aweld98

    Static Shock

    Yesterday, as I climbed into bed, bundled up in blankets and a heavy sweatshirt, I reached across by bed to grab a final blanket. All of the sudden, out of the darkness I saw a spark, which was followed by a stinging feeling in my finger. Had I not learned about electrostatics, I probably would have screamed and thought that there was something wrong with me or that the house was on fire. However, physics helped me to understand that I was not dying and that what had happened was simply an attempt of two objects to reach electrostatic equilibrium. As I was bundling up, I was unknowingly ru
  9. In a previous blog post I wrote about how the lower coefficient of friction due to ice causes a decrease in rotational motion and an increase in skidding when someone is driving. I want to extend on that topic only because a few weeks ago, when the snow was really bad, I first hand experienced the horror of making a turn without a strong centripetal force present. It was rather snowy and icy, and my friend was driving. However, as they went to make the turn, they turned too sharply, and we skid all over the road. Luckily, we gained control of the car and neither of us were injured; either
  10. For winter break, I traveled with my friend to southern Florida in order to escape the chilling winds and snow. Yesterday, as we returned from our sunny break and descended into our final destination, I applied physics in a kind of unique way. As the plane got closer and closer to the ground, the turbulence became increasingly worse (the pilot had warned us that this was expected due to strong winds). As the descend continued and the bumpiness of the ride worsened, I heard a little boy in front of me grow more and more uneasy and scared. At one point, he asked his dad "What if we just drop
  11. Like I said in my last blog post, I love spy movies, and I think I am starting to love them more and more because of all the physics applications in them. While Bond movies are awesome, I would say my all time favorite film would be Johnny English starring Rowan Atkinson, most known for his role of playing Mr. Bean. In the film, Atkinson plays a mock agent, and pretty much no one takes him seriously or believes that he can be successful at anything. However, after several mess ups, Johnny manages to save the day by preventing the villain, Pascal, from being crowned the new King of England.
  12. I love spy movies, so its no surprise that when my family received Casino Royale (a James Bond movie), for Christmas, that I was glued to the T.V. In the film, James' female counterpart, Vesper, is kidnapped by evil gamblers. Being the smart guy that he is, James quickly figures out their plot, hops into his Aston Martin and speeds after the kidnappers. However, his kidnappers are actually after Bond, so they tie up Vesper and place her directly in the road; Bond swerves to avoid Vesper, his Aston Martin does a few 360s, and he ends up crashing and in the hands of the evil guys. While I wo
  13. I spent this summer internship working in a remote sensing lab. My job was to analyze Landsat satellite imagery in order to analyze the impact of wildfire on vegetation growth in Akagera National Park in Rwanda. I was able to do this analysis because of the data provided by the satellite. Satellite orbits are possible because of the strong gravitational field of the Earth and the relative masses of the satellite and the Earth. For example, for the Landsat 8 imagery that I analyzed, the force of gravity felt by both the satellite and the Earth was equal to G(mass of the earth)(mass of Lands
  14. We all learn the importance of friction in how the world works at a very young age. For me, a Bill Nye video revealed the power and importance of this contact force. Without it, we wouldn't be able to stand still in one place, driving would be a nightmare, and about everything else in our lives would be completely out of whack, from our electronics to our daily routines. Today, however, as I was doing homework, I had a realization of friction that, although simplistic, was something I had to share in order to continue the emphasis of friction's importance in how the world works and the life
  15. A few days ago, my sister and I were leaving school. As our hands were both full, she used her body weight in order to push on the main door in order to exit the building. However, the door would not budge. I quickly realized that my sister, in her attempt to open the door, was not applying torque to her favor in this situation. Torque, which is the rotational equivalent of linear force, is dependent on three factors: the angle at which the force is applied, the magnitude of the force, and the radius at which the force is being applied. To simplify my sister's exiting scenario, however, w
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