difference between protect, defend and guard

protect - (харж хамгаалах, хамгаалан байх)Protect usually means just to keep from harm
[transitive, intransitive] to make sure that someone or something is not harmed, injured, damaged, etc.
defend - (хамгаалах)protection from attack and defend thesis
[intransitive and transitive] to do something in order to protect someone or something from being attacked:
guard - (манах, манан хамгаалах, манаанд гарах)guard is when you protect something from anything
to protect property, places, or people from attack or danger

difference between protect, defend, guard

difference between velocity and speed

velocity - (хурд, чиглэлийн дагуу хурд)Velocity is speed with respect to direction. Speed is a scalar quantity while velocity is a vector.  
speed - (хурд, хурдны хэмжээ)SPEED- It is the distance moved by an object per unit time. 

difference between velocity and speed

• The difference between speed and velocity is that speed is a scalar quantity while velocity is a vector quantity. Velocity takes into account the magnitude of a moving object measured in a specific direction while speed is the measure of magnitude or strength of a moving object.

difference between dress up and get dress