Use the Following to Answer the Question

question 12

Multiple Choice

Use the following to answer the question:
-The horizontal boom supporting the sign is of uniform construction and weighs 50 N.If the sign weighs 150 N,the force exerted by the hinge on the boom is

• A)~350 N
• B)~304 N
• C)~25 N
• D)~550 N
• E)None of these is correct.

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Definitions:

Validity

The quality of being logically or factually sound; the degree to which a concept, conclusion, or measurement is well-founded and corresponds accurately to the real world.

Experimental Group

In scientific research, the group of subjects who are exposed to the variable or treatment being tested, as opposed to the control group.

Independent Variable

This refers to a variable in an experiment that is manipulated or changed by the researcher to observe its effects on the dependent variable.

Control Group

In experimental research, a group of subjects that does not receive the experimental treatment, used as a baseline to compare the effects of that treatment.