A Beam Has a Rectangular Cross-Section 40 Mm Deep, with Second

question 5

Multiple Choice

A beam has a rectangular cross-section 40 mm deep, with second moment of area about the neutral axis of 7 % 104 mm4, and is bent into the arc of a circle. For a bending moment of 120 N m, the maximum bending
Stress is:

• A) 17.2 MPa
• B) 34.3 MPa
• C) 68.6 MPa
• D) 1714 MPa

Understand the process of DNA replication and the significance of semiconservative replication.

Identify the enzymes involved in DNA replication and their functions.

Understand the experimental evidence supporting the identification of DNA as genetic material.

Recognize the significance of mutations and errors in DNA replication.

---

Definitions:

Categorical Variable

A variable that can take on one of a limited, and usually fixed, number of possible values, assigning each individual to a particular group or nominal category.

Quantitative Variable

A type of variable that represents measurable quantities and can be expressed in numeric values.

Time Plots

Charts that display values against time, allowing for the observation of trends, patterns, and seasonal variations in data series.

Explanatory Variable

In statistical modeling, an explanatory variable is one that is manipulated or categorized to assess its effect on a response variable.