Units of force conversions F (not weight) The force F: Newton N is the SI basic unit of force. 1 N = 1 kg Ã m / sÂ². The unit symbol is N and the symbol of the force is F (force). Force of weight is FG = m Ã g, Mass = m and gravity g = 9.80665 m/sÂ². This program converts English and American measures to metric units.
What is the structure difference of the esophagus and trachea? The esophagus is a smooth tube that when we eat food goes trough the esophagus to the stomach. The trachea (windpipe) is made of cartilaginous rings that when we inhale/exhaleâ¦ air (breath in and out) it goes to the lungs. So if food goes accidentally to your trachea, you choke.
If they weren't there you would gurgle upon inhalation and exhalation. The 'c' shaped cartilage rings are present in the trachea to prevent it from collapsing and they keep the trachea open for air to come in and out.he 'c' shaped cartilage rings are present in the trachea to prevent it from collapsing and they keep the trachea open for air to come in and out.