A Box Rests on a Horizontal Surface with One Edge $\times$

question 16

Multiple Choice

A box rests on a horizontal surface with one edge against a small ridge as shown.If the force is 840 N and the bottom right edge of the box is just slightly off the ground,what is the weight of the box? (Hint: With the right edge slightly off the ground,the forces applied by the floor and the ridge must be at the bottom left corner of the box,and the angle can be taken to be negligibly small.)

• A)420 N
• B)590 N
• C)840 N
• D)1.7 \(\times\) 10³ N
• E)2.4 \(\times\) 10³ N

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Definitions:

Operational Definition

A specific description of a concept or variable in terms of the methods used to measure or manipulate it in a given study.

Construct Validity

The extent to which a test measures what it claims to measure, assessing the accuracy of an instrument or experiment.

Conceptual Replication

The process of conducting a study with different methods or measures than the original to validate the same underlying concept or hypothesis.

Direct Replication

The process of conducting a study with the same methodology and under the same conditions as a previous study to verify its results.