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The plank remains in equilibrium for any value of θ but slips if θ Find the coefficient of static friction between the plank and the ground?
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What happened to the coefficients of friction as the surface area of the contact increased?
As the coefficient of friction is not function of the area or not related to the area of the contact surface so the coefficient of friction remains constant on the increase of the contact area. The coefficient of friction depends upon the material of the friction surfaces only.
What happened to the coefficients of friction as the surface area of the contact increases?
As the coefficient of friction is not function of the area or not related to the area of the contact surface so the coefficient of friction remains constant on the increase of the contact area. The coefficient of friction depends upon the material of the friction surfaces only.
Do the pipline losses reduce after the pipeline are in use for 1 year or so?
No. The pressure drop remains the same. The only thing that could led to a smaller pressure drop after 1 (or more) year, is the internal surface friction coefficient. But this coefficient does not change in a measurable way. Perhaps small particles are re-arranged inside the pipe, but the coefficient remains the same. So does pressure drop.
Explain the difference between a constant and a coefficient?
A constant is just a number that remains same throughout, while a coefficient is one which is followed by one or more variables.
Can a body in linear motion be in equilibrium?
If it remains at constant speed then it can be considered to be in equilibrium.
How can you measure the sliding friction?
In physics a number known as the 'coefficient of friction' is used to calculate the frictional force between any two surfaces. Ff=µFn, Meaning that the frictional force (Ff) is equal to the coefficient of friction (µ) multiplied by the normal force (Fn). If one wishes to calculate the coefficient of friction for two objects, you can pull an object of whatever material you wish along a floor of whatever material you wish. As long as the object remains at a constant speed, the force which you use to pull the object (which can be measured by a force meter) is equal to the frictional force. Once you find the normal force (to find the normal multiply the mass of the object by the acceleration due to gravity on your part of the world, Fn= mg) you simply divide the frictional force by the normal force and you have the coefficient of friction. or just ask your teacher lol
When using the inclined plane what is the push or pull force?
(ignoring friction) > Mass of the object * sine (incline angle) = force down, and parallel to, the slope (kilograms force) This ratio ( force / mass) remains constant regardless of the objects mass, as long as the incline angle remains the same.
As a result of friction between internal parts of an isolated system?
The total mechanical energy of the system remains the same.
What is a force that opposes motion between two surfaced that are in contact?
Friction. More specifically, if the body remains at rest then the opposing force is known as static friction. Whereas, if the body is in motion it is known as kinetic friction.
What is a force that opposes motion between two surface that are in contact?
Friction. More specifically, if the body remains at rest then the opposing force is known as static friction. Whereas, if the body is in motion it is known as kinetic friction.
In a reversible reaction two substances are in equilibrium if the concentration of each is doubled but the equilibrium constant remains unaffected?
TRUE
Does friction affects velocity ratio?
No. The velocity ratio remains constant but the friction absorbs power.
