An Electron with a Rest Mass of 0

question 66

Multiple Choice

An electron with a rest mass of 0.511 MeV travels at speed v = 0.500c.What is its kinetic energy?

• A)590 keV
• B)80 keV
• C)510 keV
• D)430 keV
• E)220 keV

---

Definitions:

Demand Characteristics

Features of an experimental setting that lead participants to guess the purpose of the study, potentially influencing the behavior being studied.

Correlational Studies

Research methods that examine the relationship or correlation between two or more variables, without determining causal direction.

Strengths and Limitations

Represents the positive abilities and constraints or weaknesses possessed by an individual or system.

Case Studies

A research method involving an up-close, in-depth, and detailed examination of a subject of study (the case), as well as its related contextual conditions.