Suppose the Ends of a 20-M-Long Steel Beam Are Rigidly $\degree$

question 67

Multiple Choice

Suppose the ends of a 20-m-long steel beam are rigidly clamped at 0 $\degree$ C to prevent expansion.The rail has a cross-sectional area of 30 cm².What force does the beam exert when it is heated to 40 $\degree$ C? (a_steel = 1.1 x 10^-5/C $\degree$ ,Y_steel = 2.0 x 10¹¹ N/m²) .

• A)2.6 x 10⁵ N
• B)5.6 x 10⁴ N
• C)1.3 x 10³ N
• D)6.5 x 10² N

---

Definitions:

Internet Piracy

The unauthorized use, reproduction, or distribution of copyrighted material over the internet, including software, movies, music, and e-books.

Enhance Profits

Strategies or actions undertaken by a business to increase its earnings and maximize its financial performance.

Total Demand Curve

A graphical representation of the total quantity of a good or service demanded across all consumers in the market at various price levels.

Courts Of Law

The institutions where justice is administered, disputes are resolved, and laws are interpreted and applied.