What's New

  • Fatima Ahmed
    Fatima Ahmed: Abdullah Masud's answer about the English writing Genghis Khan project. Good logic and reasoning overall! Here is the full project and a screenshot: https://docs.google.com/document/d/1YFPMFSk7o0tzWyat1u3AY2k4WLlmH65c5-Phkk9xcvw/edit?usp=sharing
    • September 10, 2021
  • Fatima Ahmed
    Fatima Ahmed: Hi Abdullah, we just read your answer regarding the Physics project in our site: Dilemma in Taguar Haor. It was very nicely described and very easy to understand with good logic. Your writing can be easily understood by people with little physics...  more
    • September 3, 2021
  • Abdullah Masud
    Abdullah Masud commented on Fatima Ahmed's classified listing.
    Andy Morales and The Rain - $5 Physics Quiz
    • July 15, 2021
    • Hasnain Tariq likes this.
    • Abdullah Masud
      Syeda Anmol Andy used the ideology of moment. Moment of force is the idea to make a body to rotate on a pivot. Moment has a simple rule that is the closer you are to the pivot or the point the more energy you would require to rotate the body. This rule is obeyed by...  more
    • Abdullah Masud
      Nishat Tamanna Mr. Andy chimed in with the idea of momentum. Momentum is the product of force and the perpendicular distance between the pivot and line of force. He considered providing a force greater than the weight of the tree, but this is only feasible if the force...  more
    • Abdullah Masud
      Farhan Shahid Andy's idea concerns the effect of moments. The idea about moments is that the further a force acts away from the pivot(the turning point of an object), the more effective it will be in turning the object. For example, the knob of a door is situated the...  more
    • Abdullah Masud
      Abdullah Masud Mr Andy was able to use the principles of moment in the above scenario. As mentioned in the scenario, the roots of the tree were fixed with the ground so it was a fixed point and a fixed point is called a pivot. This pivot allowed the tree to be removed...  more
    • Abdullah Masud
      Shaikh Nafisa Binte Fahad Andy told others to help lift the tree from the other side, as the force acting away from the root of the tree made it easier to lift the tree than near the root.
      The car was acting as a pivot here because the weight of the whole tree was on the car. The...  more
      • July 16, 2021
  • Abdullah Masud
    Abdullah Masud commented on Fatima Ahmed's classified listing.
    Adam's Brunoise Dice - $5 Physics Quiz
    • June 27, 2021
    • Sourav Chowhan likes this.
    • Abdullah Masud
      Khadeeza Afruz Shammee Pascal's principle of pressure describes this knife phenomenon. As a scalar physical quantity ,pressure is defined as the force per unit area applied perpendicular to the surface which it is applied .
      The elementary mathematical expression for pressure...  more
      • June 25, 2021
    • Abdullah Masud
      Aria Hossain In physics force=pressure/area. In order to cut food, you have to exert force. According to the equation, force is directly proportional to pressure. A blunt knife has more area around the cutting edge than a sharp knife. So a blunt knife requires more...  more
      • June 26, 2021
    • Abdullah Masud
      Abdullah Julaybib Firstly, you’ll need more pressure to use a blunt knife.
      P=F/A, for a fixed area, force is directly proportional to pressure. If the
      area of a blunt and a sharp knife is same, then doubling the pressure on blunt
      knife means doubling the force....  more
      • June 26, 2021
    • Abdullah Masud
      Abhay Sunny Pressure= force/area, area of sharp knife is less than area of blunt knife, p is proportional to 1/area, so pressure of sharp knife is more than blunt knife.Don't get confused with the wight and pressuring, pressure is the force on a unit area that is...  more
      • June 27, 2021
    • Abdullah Masud
      Abdullah Masud This is simply an example of pressure in our daily lives. Here, according to Pascal's law (P = f/a, where pressure is the force applied over a certain area), the sharp knife can exert greater pressure than the blunt knife, as the sharper knife has less...  more
      • June 27, 2021
  • Abdullah Masud
    Abdullah Masud joined the group Coolinventor Contributors
    • June 25, 2021
  • Abdullah Masud
    Abdullah Masud is now friends with Fatima Ahmed.
    • June 19, 2021
  • Abdullah Masud
    Abdullah Masud follow Fatima Ahmed.
    • June 17, 2021
  • Abdullah Masud
    Abdullah Masud has just signed up. Say hello!
    • Fatima Ahmed likes this.
    • Abdullah Masud
      Fatima Ahmed Hi Abdullah, can you please accept my friend request? I think you answered in the physics quiz.
      • June 16, 2021