A Mass on a Spring Vibrates in Simple Harmonic Motion

question 57

Multiple Choice

A mass on a spring vibrates in simple harmonic motion at a frequency of 4.2 Hz and an amplitude of 4.2 cm.If a timer is started when its displacement is a maximum (hence x = 4.2 cm when t = 0) ,what is the acceleration magnitude when t = 4 s?
​

• A) zero
• B) 0.3 m/s²
• C) 18.1 m/s²
• D) 9 m/s²
• E) ​11.8 m/s²

Assess the government's revenue generation from excise taxes and its implications.

Understand the concept of tax incidence and its economic implications.

Evaluate consumer and producer surplus changes due to tax imposition.

Identify the development stages and psychological traits of infants.

---

Definitions:

Multifactor CAPM

Generalization of the basic CAPM that accounts for extra-market hedging demands.

APT

The Arbitrage Pricing Theory, a multifactor model used to determine asset returns based on the relationship between a financial asset's expected return and its risks.

Hedge Portfolios

Investment portfolios designed to reduce the risk of adverse price movements in an asset, often by using derivatives such as options and futures.

Risk Premiums

The extra return expected by investors for taking on the risk of an investment compared to a risk-free asset.