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A car goes forward along a level road at constant velocity The additional force needed to bring the car into equilibrium is?
Wiki User
∙ 14y ago
Zero.
Wiki User
∙ 14y ago
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What is meant by law of equilibrium?
Law of equilibrium - The principle that (at chemical equilibrium) in a reversible reaction the ratio of the rate of the forward reaction to the rate of the reverse reaction is a constant for that reaction.
What causes a force to produce motion?
To move an object forward from rest the thrust of forward force must be greater than the drag acting in the opposite direction. In order to keep moving at a constant velocity the forward force must equal the drag.
Why person jumping out of a speeding train fall forward?
The velocity of the person is the velocity of the speeding train plus the velocity of the jump out. this gives a resultant velocity with a forward component in the direction of the train's motion.
In an aero plane drag acts in the opposite direction to thrust?
Yes that is right. In any static equilibrium (not accelerating in any direction) all of the forces cancel out. A plane that is traveling at a constant velocity and altitude is not accelerating although it may be moving. So the thrust is pushing the plane forward and up, the drags pushes back, and gravity pulls the plane down. All of these forces cancel out so the plane stays up in the air and keeps moving forward.
What conditions are present when equilibrium is reached in a solution?
* forward rate = reverse rate* constant environmental conditions (e.g.: T, P, etc.; otherwise, Le Chatelier's Principle comes into effect)* closed system
In a reaction the equilibrium constant for the forward reaction is Kf and the equilibrium constant of the backward reaction is KB What is the relationship between Kf and KB?
Kb= 1/Kf (:
When do the macroscopic properties become constant in an equilibrium system?
when forward and reverse reaction rates are equal
What is the correct statement of the equilibrium?
The correct statement of equilibrium is that the rates of the forward and reverse reactions are equal, leading to a constant concentration of reactants and products over time.
When a reaction system is at equilibrium the rates of the reaction in the forward and reverse directions are?
Equal to one another. K= k1/k-1 where k1 is the forward reaction, k-1 is the backwards reaction and K is the equilibrium constant.
What is meant by law of equilibrium?
Law of equilibrium - The principle that (at chemical equilibrium) in a reversible reaction the ratio of the rate of the forward reaction to the rate of the reverse reaction is a constant for that reaction.
Describes chemical equilibrium?
Chemical equilibrium is a term used to describe a balanced condition within a system of chemical reactions. Essentially, when in chemical equilibrium, substances becomes definite and constant.
If a car is traveling on the highway at a constant velocity the force that pushes the car forward must be?
1. force that moves a car forward is the friction force between the tires and the road (ignoring what is going on mechanically in the car) 2. if the car is travelling at constant velocity, net force is zero - forces pushing car forward are equal to forces pushing car back
What law of motion is it when stopping a car you are thrown forward?
Newton's first law of motion states that any object at equilibrium, i.e. stationary or at constant velocity, will continue in that state unless acted on by a force. In reality, you are not thrown forward in the car. Its a matter of perspective. The car decelerates, i.e. force in negative direction to velocity due to friction from the brakes, and you continue moving forward until you reach whatever restraint is going to force you also to decelerate.
What equilibrium concentrations are affected by changing the initial concentration?
Yes, the concentrations are constant but not necessarily static. The 'forward' reaction rate matches the 'reverse' reaction rate.
Explain the difference between static equilibrium and dynamic equilibrium?
A chair has static equilibrium ... a bicycle has dynamic equilibrium.Dynamic implies movement while staticimplies stationary, but that is a bit misleading. Take an object traveling with a constant velocity in deep space (no air resistance and no gravity). It could be viewed as being as much at rest as an object sitting on a table. The mathematical or chemical use of equilibrium is better. In these cases there is no net change over time even though energy maybe expended. If a steady-state situation in which a reverse process is occurring has a corresponding forward process, at a rate which achieves an exact balance, it is said to be in dynamic equilibrium. With regard to the pressure and volume of water sealed in an exhausted vessel at a constant temperature, a balanced state of constant change is possible in which molecules are constantly being exchanged between ice, water, and water vapour phases. By definition this balanced state of constant change is dynamic equilibrium. Static equilibrium can refer to a steady-state situation with no dynamic forces acting on its potential energy in either reverse or forward processes. By definition, in a state of staticequilibrium there is balance, but no change, disturbance or movement.
What causes a force to produce motion?
To move an object forward from rest the thrust of forward force must be greater than the drag acting in the opposite direction. In order to keep moving at a constant velocity the forward force must equal the drag.
Why person jumping out of a speeding train fall forward?
The velocity of the person is the velocity of the speeding train plus the velocity of the jump out. this gives a resultant velocity with a forward component in the direction of the train's motion.
