Conceptual Physics: The High School Physics Program
Conceptual Physics: The High School Physics Program
9th Edition
ISBN: 9780133647495
Author: Paul G. Hewitt
Publisher: Prentice Hall
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Textbook Question
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Chapter 2, Problem 12A

What two forces compress a spring inside a weighing scale when you weigh yourself?

Expert Solution & Answer
Check Mark
To determine

The two forces that will compress a spring inside a weighing scale.

Answer to Problem 12A

The two forces compress a spring inside a weighing scale is the gravity force and the support force.

Explanation of Solution

Introduction:

Support force is the force that balances the weight of an object on the surface. It always acts in upward direction. It is also termed as the normal force.

The weight of the person acts in the downward direction due to gravity. The support force is equal to the weight of the person and opposite in direction. So the net force acting on the system is zero at mechanical equilibrium. The spring force on the weighing scale is compressed by the weight of the person and the support force. Hence, the two forces that will compress a spring inside a weighing scale is the gravity force and the support force.

Conclusion:

Thus, the two forces compress a spring inside a weighing scale is the gravity force and the support force.

Chapter 2 Solutions

Conceptual Physics: The High School Physics Program

Ch. 2 - What is the angle between a support force and the...Ch. 2 - What two forces compress a spring inside a...Ch. 2 - When you are at rest and supported by a pair of...Ch. 2 - Can an object be moving and still be in...Ch. 2 - If you push a crate across a factory floor at...Ch. 2 - Prob. 16ACh. 2 - According to the parallelogram rule for two...Ch. 2 - Consider the suspension of Nellie in Figure 2.11....Ch. 2 - Consider Nellie in Figure 2.12. What changes in...Ch. 2 - When Nellie hangs from ropes at different angles,...Ch. 2 - Blocks A and B are supported by the table. Block C...Ch. 2 - In the diagram below, identical blocks are...Ch. 2 - Burl and Paul stand on their sign-painting...Ch. 2 - Percy does gymnastics, suspended by one rope in A...Ch. 2 - A cat lies on the floor. Can you say that no force...Ch. 2 - Consider two forces, one having a magnitude of 20...Ch. 2 - When a box of chocolate bars is in mechanical...Ch. 2 - Faina says that an object cannot be in mechanical...Ch. 2 - Phyllis Physics hangs at rest from the ends of the...Ch. 2 - Harry the painter swings year after year from his...Ch. 2 - How many significant forces act on a your physics...Ch. 2 - Why doesnt the support force that acts on a book...Ch. 2 - Nicole stands on a bathroom scale and reads her...Ch. 2 - Justin sets a hockey puck sliding across the ice...Ch. 2 - Alyssa pulls horizontally on a crate with a force...Ch. 2 - Consider a heavy refrigerator at rest on a kitchen...Ch. 2 - Sneezlee is supported by two thin wires. Is the...Ch. 2 - Sneezlees wire supports are repositioned as shown....Ch. 2 - If a picture frame were supported by a pair of...Ch. 2 - A monkey hangs by a strand of rope and holds onto...Ch. 2 - Why cant the strong man pull hard enough to make...Ch. 2 - Two vertical chains are used to hold up a 1000-N...Ch. 2 - Lucy Lightweight stands with one foot on one...Ch. 2 - Harry Heavyweight, who weighs 1200 N, stands on a...Ch. 2 - The sketch shows a painters staging in mechanical...Ch. 2 - A staging that weighs 300 N supports two painters,...Ch. 2 - Two children push on a heavy crate that rests on a...Ch. 2 - Two children push on a crate. They find that when...
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