Recent content by jdogg0075

  1. J

    Traveling to other worlds

    I fully understand. Im being a little misunderstood. I simply was saying antimatter exists. I had a major headache from practice when i wrote this. I probably messed up. And sarcasm is hard to understand over the internet. So i hope Chris didn't take it the wrong way.
  2. J

    Traveling to other worlds

    Hi Chris nice to meet you I'm Justin, By people i mean physicists and by physicists i mean ANY physicists, i think Chris you can agree absolutely that people are wrong. Theory's have been accepted that are wrong. Throughout history. I think it is narrow minded for someone to accept someone...
  3. J

    Traveling to other worlds

    Hey thats cool and all. My chemistry teacher is dyslexic. Firefox does help i has a built in feature like some one said i forgot who. As far as my ideas on the topic. In my heart and the back of my brain i constantly want to beak the limit of light speed. But so far i will have to accept the...
  4. J

    Please Help With A Physics Problem

    If im not mistaken it dosent matter what mass something is. A 6lb. weight will hit the ground the same time as a 4lb and a 2lb as long as they are at the same height. And from what you said they spit at their max height.
  5. J

    Force of a car

    Im sure there is somewhere. Id search the surface you are using. I personally dont know any.
  6. J

    Force of a car

    Well to find the coeff. of static friction you have to either know hey steel has a coeff. of .12 or somthing. Or you have conduct an experiment where you have a known mass on the surface. and like a pulley with a string conected to a weight. You keep adding weight until the body moves and then...
  7. J

    Force of a car

    By how to calculate the coefficient of static friction im guessing you want to calculate this. The formula really should say Frictional force = coff. friction * normal force. Bacially coff. of friction has to be measured through experiments. Let me give you an example of how to calculate...
  8. J

    Force of a car

    I see. Well Im just a senior in high school that has loved physics since about 5th grade. Nice to meet you. Any who. Before we start about how much force there are some concepts that need to be understood. First is coefficient of static friction. Do not let it scare you. Basically have you...
  9. J

    What do photons look like?

    I think you are mixing up both waves that make "particles", and physical waves that particles make. Im not sure if im understanding you here. But i think i do. Your referring to say a specific wave frequency of like for example 510 nm. Modern science can now measure things with these sort's of...
  10. J

    Force of a car

    I don't know if this is a question of your own or what. But any case: On a frictionless surface any amount of force would move the car. Now when you introduce friction You would have to take into account the coeff. of static friction and normal force (weight of car in newtons).
  11. J

    Powerboat Velocity Question

    Assuming when you say "due northwest" meaning 45 degrees west of north. Using this then we can set up vectors to solve this. One of your vectors is 10 m/s at 45 degrees north of west and another is at 4.2 m/s north or 0 degrees. Using law of cosines you can use this information to solve for your...
Top