bird

  1. N

    Drinking bird temperature

    In a drinking bird, water from the wet on the outside of the head evaporates, causing the vapor inside the head of the bird to cool. This reduces the pressure of the vapor at the top, allowing the higher pressure in the lower bulb to push up the column of liquid. But the bird's body...
  2. P

    Unit to see from the bird's eye

    Bird is example as human to understand physics. When the bird size is longer from the same height, the bird's eye see that the distance is shorter as the bird's body is longer. It means unit as meter is changed when the bird's size is changed. When we increase the human size as relatively, the...
  3. H

    Bird dropping fish question

    A sea bird catches a fish and then flies in an easterly direction with a speed v=7.39 m/s, h = 4.69 m above the surface of the sea. The fish has a mass of 115.3 g and is still alive. It thrashes and wiggles and as a result the bird drops the fish. i) What is the speed of the fish when the...
  4. S

    Bird feeder's force

    A 1.1 kg bird feeder hangs from a horizontal tree branch. The bird feeder is attached to the branch at a point that is 1.1 m from the trunk. What is the amount of torque exerted by the bird feeder on the branch? The origin is at the pivot point, where the branch attaches to the trunk. Given...