A 60- $\mu$ C Charge Is Held Fixed at the Origin and a Origin

question 142

Multiple Choice

A 60- $\mu$ C charge is held fixed at the origin and a -20- $\mu$ C charge is held fixed on the x axis at a point x = 1.0 m.If a 10- $\mu$ C charge is released from rest at a point x = 40 cm,what is its kinetic energy the instant it passes the point x = 70 cm?

• A)9.8 J
• B)7.8 J
• C)8.8 J
• D)6.9 J
• E)2.8 J

---

Definitions:

Norm-Referenced Test

A type of test designed to compare and rank test takers in relation to one another.

Measures of Central Tendency

Statistical metrics that describe the center point or typical value of a dataset, including mean, median, and mode.

Raw Scores

The initial, unadjusted scores obtained directly from assessments or tests, often before any standardization, scaling, or norming procedures are applied.

Z-Score

The most fundamental standard score, which is created by converting an individual’s raw score to a new score that has a mean of 0 and a standard deviation of 1.