Under Perfect competition , Marginal revenue is constant and equal to the prevailing market price, since all units are sold at the same price. Thus in pure competition MR = AR = P.
This statement is not true, and reflects a simplistic view of the link between the number of competitors and the vigor of competition. Holding buyer power constant, competition can sometimes be fierce in markets that involve only a handful of competitors. Similarly, markets involving several competitors may have little or no effective competition. For example, despite the fact that there are relatively few providers of general aviation equipment, competition for new plane orders is often fierce and suppliers seldom earn above-normal profits. On the other hand, textile and agricultural markets involve thousands of competitors that are sometimes sheltered from import competition by trade barriers and government price support programs. To accurately assess the vigor of competition in any given market, one must carefully analyze market structure (including the number and size distribution of competitors), competitor behavior and industry performance.
If the nominal interest rate is constant, then PY is constant in the equation PY = MV, so V will remain constant so long as money supply does not change.
In a perfect competition, a firm can sell any amount of output at a given market price. It means firm's additional revenue(MR) from the sale of every additional unit of the commodity will be just equal to the market price (i.e. AR). Hence average revenue and marginal revenue become equal (AR=MR) and constant in that situation. Consequently the AR and MR curve will be same and would be horizontal or parallel to the x-axis.
They are constant at equilibrium GDP.
Yes, in a frictionless environment, there is no force opposing motion, so objects will continue to move at a constant velocity unless acted upon by an external force. This means that less force is required to maintain or change an object's motion on a frictionless floor compared to a floor with friction.
No force is acting on it. Constant velocity means no acceleration, which means no force, from f=ma, no 'a' no force.
The acceleration of a 2kg mass sliding down a frictionless ramp is equal to the acceleration due to gravity, which is approximately 9.8 m/s^2. This acceleration remains constant as there is no force acting against the motion of the mass on a frictionless surface.
It is a constant for everywhere everytime
Gravitational because it is related to gravity; universal because it is expected to apply everywhere; constant because it is expected to be the same everywhere.
In a frictionless pendulum, the total mechanical energy (the sum of potential and kinetic energy) remains constant. This means that as the pendulum swings back and forth, the energy is continuously exchanged between potential and kinetic energy, but the total amount of energy remains the same.
On a frictionless surface, no force is required to keep a body moving with constant speed. According to Newton's first law of motion, an object in motion will remain in motion unless acted upon by an external force. Thus, in the absence of friction, the body will continue to move at a constant speed indefinitely.
because
no it does not remain contant.
time is a constant, therefore it is everywhere at anytime in all places
F=ma constant speed would mean 'a' acceleration is zero thus force zero. The puck would be in equilibrium, and the force would be zero at constant motion. Constant motion is constant velocity including the constant zero velocity.
Uniform flow cannot occur in a frictionless channel because the absence of friction does not allow for energy dissipation, causing the flow velocity to remain constant throughout the channel. In reality, energy is lost to friction, resulting in a non-uniform velocity profile.