Copernicus Proposed a Heliocentric Model of the Universe Because ________

question 31

Multiple Choice

Copernicus proposed a heliocentric model of the universe because ________.

• A) placing the sun in the centre made the universe mathematically simpler
• B) he wanted to challenge traditional Aristotelian viewpoints
• C) his astronomical observations indicated that the sun was the centre of the universe
• D) he believed in Ptolemy's system of epicycles
• E) he was convinced by Kepler's laws of planetary motion

---

Definitions:

Short-Run

A timeframe in which a company cannot alter at least one of its resources.

Economic Profit

The difference between the total revenue earned by a firm and the total cost of inputs, including both explicit and implicit costs.

Implicit Costs

The opportunity costs of utilizing resources owned by the firm that could have been employed for other purposes.

Explicit Costs

Direct, out-of-pocket payments for resources employed in the production of goods or services, easily identified and measured.