Two Identical Concrete Slabs Lie Flat and in Contact with Each

question 34

Multiple Choice

Two identical concrete slabs lie flat and in contact with each other as shown in the figure. If the temperature increases by 40°C, the lower edges opposite the contact edges remained fixed in position, and the lower edges of the contact side remain in contact, at what angle will the slabs be tilted? The coefficient of thermal expansion of the concrete is 10 × 10^-6/K.

• A) 19°
• B) 0.028°
• C) 15°
• D) 1.6°
• E) The answer depends on the length of the slabs.

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Definitions:

Invokes Itself

Describes a method or function that calls itself, a technique known as recursion, often used for solving iterative problems efficiently.

Stack Overflow

An error that occurs when a program uses more stack memory than is allocated, often resulting in a crash.

Stack Underflow

An error condition that occurs when attempting to remove an item from an empty stack.

Factorial Method

A method, often implemented using recursion, to calculate the factorial of a given number, multiplying all positive integers up to that number.