Yo stupid fool it easy you dont need to ask that
Gravity is the only force of friction if it and the environment is at rest.
does anybody know the answer? im doing a junior certificate project on this and i need to research it! PLEASE answer if you know! THANKS :)
If the block is stationary, friction has no active effects. However, if a force is applied to the block, it will continue to stay at rest until that force is more powerful than the force of friction. If the block is moving, the friction between the two surfaces is slowing the block down. This is because the surfaces of the two objects bond together (temporarily). When the object moves, the bonds break, and this releases heat, so both of the objects also heat up due to friction.
the weight of the object, what its outside consists of, the nature of the surface it resting on.
It depends how they are in contact. If one is simply resting on top of the other you need to take into account, the friction coefficient which can be calculated from the Reynolds number of the particular material; and the mass of the object as the heaver it is the more friction will come into play.
Research the name of your project and the first website is really helpfull
Gravity is the only force of friction if it and the environment is at rest.
does anybody know the answer? im doing a junior certificate project on this and i need to research it! PLEASE answer if you know! THANKS :)
me
Its the difference between your systolic and diastolic readiing.
When you push a book, it stops because of the force you are applying to it. The friction between the book and the surface it is resting on counteracts the force you are applying, bringing the book to a stop.
If the block is stationary, friction has no active effects. However, if a force is applied to the block, it will continue to stay at rest until that force is more powerful than the force of friction. If the block is moving, the friction between the two surfaces is slowing the block down. This is because the surfaces of the two objects bond together (temporarily). When the object moves, the bonds break, and this releases heat, so both of the objects also heat up due to friction.
Friction is the resistance to movement of an object pressing/resting/moving on a surface. It's not intuitively obvious but the standing still friction and moving friction are different. Assume you have a block of wood resting on a tabletop. The amount of force required to make the block begin to move (static friction) is greater than the force required to keep it moving (kinetic friction) after it has begun to move.
the weight of the object, what its outside consists of, the nature of the surface it resting on.
It depends how they are in contact. If one is simply resting on top of the other you need to take into account, the friction coefficient which can be calculated from the Reynolds number of the particular material; and the mass of the object as the heaver it is the more friction will come into play.
Static friction resists an object from moving when at rest (still) with respect to the surface it is resting on or in contact with. Kinetic friction, or dynamic friction, (normally what we think of when we say 'friction') describes the friction that occurs when one body moves relative to another body and when both bodies are in contact with each other.
The concentrations on Na+ outside the cell and concentrations of K+ inside the cell determine the resting membrane potential.