Assuming the Incline to Be Frictionless and the Zero of Gravitational

question 28

Multiple Choice

Assuming the incline to be frictionless and the zero of gravitational potential energy to be at the elevation of the horizontal line,

• A) the kinetic energy of the block just before it collides with the spring will be equal to mgh.
• B) the kinetic energy of the block when it has fully compressed the spring will be equal to mgh.
• C) the potential energy of the block when it has fully compressed the spring will be zero.
• D) the energy stored in the spring plus the gravitational potential energy of the block when it has fully compressed the spring will be equal to mgh.
• E) None of the above statements will be true.

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Definitions:

Economic Profit

The difference between the total revenue generated by a business and the total opportunity costs of all resources used in the production process.

Competitive Price-searcher

A market structure where firms have some degree of market power, allowing them to set prices above marginal cost to seek profits, while still facing competition.

Average Total Cost

The total cost of production divided by the quantity produced, representing the cost per unit of output.

Contestable Market

A market with free entry and exit, where a company's prices and outputs are constrained by the threat of competition from potential entrants.