query: Trouble understanding internal and external forces
positive_passages.docid: 20782
positive_passages.text: Do internal forces cause change in velocity?
negative_passages.docid: 17121
negative_passages.text: Kinetic energy with respect to different reference frames
negative_passages.docid: 101257
negative_passages.text: Intuitive understanding of centripetal vs. centrifugal force
negative_passages.docid: 97765
negative_passages.text: Force as gradient of scalar potential energy
negative_passages.docid: 53504
negative_passages.text: Problem regarding Buoyancy forces and Archimedes principle
negative_passages.docid: 155927
negative_passages.text: Force felt by a moving charge due to its own magnetic field?
negative_passages.docid: 71369
negative_passages.text: Electric force between charges in two different media
negative_passages.docid: 102561
negative_passages.text: Electric flux due to external charge
negative_passages.docid: 37598
negative_passages.text: Deriving the Lorentz force from velocity dependent potential
negative_passages.docid: 142199
negative_passages.text: Lifting frictional force and relative values for kinetic vs static friction
negative_passages.docid: 109438
negative_passages.text: Finding net magnetic and electric force on charged particle
negative_passages.docid: 13068
negative_passages.text: Understanding Normal Force Change
negative_passages.docid: 42630
negative_passages.text: Can internal forces do work?
negative_passages.docid: 141202
negative_passages.text: Explanation on Newton's second law
negative_passages.docid: 8433
negative_passages.text: Can linear momentum be conserved before and after collision in the presence of an external force?
negative_passages.docid: 155237
negative_passages.text: Electric Potential, Work Done by Electric Field & External Force
negative_passages.docid: 126348
negative_passages.text: How should I break down a tension force for free body diagrams?