A Small Ball with a Mass of 40 G and a Charge

question 19

Multiple Choice

A small ball with a mass of 40 g and a charge of -0.3 $\mu$ C is suspended from the ceiling on a string.The ball is suspended a distance of 7.0 cm above an insulating floor.If a second small ball with a mass of 50 g and a charge of 0.6 $\mu$ C is placed on the floor directly beneath the first ball,what is the tension in the string?

• A)0.04 N
• B)0.06 N
• C)0.33 N
• D)0.39 N
• E)0.72 N

---

Definitions:

Population Mean

The mean of every value in a given population.

Population Variance

The average of the squared differences from the Mean, describing the variation of the entire population.

Normally Distributed

Describes a bell-shaped frequency distribution that is symmetrical about the mean, indicating that data near the mean are more frequent in occurrence than data far from the mean.

Sample Size

The number of observations or data points collected in a study or used to represent a larger population.