If Y = 002 Sin (30x − 400t) (SI Units), the Angular Frequency

question 9

Multiple Choice

If y = 0.02 sin (30x − 400t) (SI units) , the angular frequency of the wave is

• A) 30 rad/s
• B) 30/2π rad/s
• C) 400/2π rad/s
• D) 400 rad/s
• E) 40/3 rad/s

---

Definitions:

Contribution Margin Ratio

A financial ratio that measures how much of each sale is available to cover fixed costs after variable costs have been paid.

Variable Costs

Charges that fluctuate in relation to the volume of business activities or production levels.

CVP Analysis

Cost-Volume-Profit Analysis, a tool that helps understand the relationship between costs, volume of sales, and profit.

Sales Mix

The combination of products or services a company sells, often analyzed to assess profitability and resource allocation.