Exhibit 5-1 a 2.30 Kg Mass Is Suspended from the Ceiling and Ceiling

question 57

Multiple Choice

Exhibit 5-1
A 2.30 kg mass is suspended from the ceiling and a 1.70 kg mass is suspended from the 2.30 kg mass, as shown. The tensions in the strings are labeled and . Use this exhibit to answer the following question(s) .
-Refer to Exhibit 5-1. The string supporting the 1.70 kg mass is cut. The magnitudes of the tension in string 1 before and after string 2 is cut are

• A) T_1,i = 22.5 N; T_1,f = 5.80 N.
• B) T_1,i = 39.2 N; T_1,f = 5.80 N.
• C) T_1,i = 22.5 N; T_1,f = 22.5 N.
• D) T_1,i = 39.2 N; T_1,f = 22.5 N.
• E) T_1,i = 39.2 N; T_1,f = 39.2 N.

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Definitions:

Null Hypothesis

The hypothesis in statistical testing that assumes no significant difference or effect in the population; it is the hypothesis that researchers aim to test against.

One-sample T Test

A statistical test used to determine whether the mean of a single sample differs significantly from a known or hypothesized population mean.

Standard Error

A statistical measure that estimates the accuracy of a sample mean by quantifying the dispersion of sample means around the population mean.

Standard Deviation

A measure of the amount of variation or dispersion of a set of values, showing how much the values differ from the mean.