1. The unstretched length of spring AB is 3.3 m . If the block is held in the equilibrium position shown, determine the mass of the block at D. 2. Draw the tree-body diagram of the ring A. (Draw the vectors starting at the black dot.)

1. The unstretched length of spring AB is 3.3 m . If the block is held in the equilibrium position shown, determine the mass of the block at D. 2. Draw the tree-body diagram of the ring A. (Draw the vectors starting at the black dot.)

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter46: Room Air Conditioners

Section: Chapter Questions

Problem 2RQ

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Concept explainers

Chemical and Phase Equilibrium

Phase diagrams or equilibrium phase diagrams are the graphical representations that show the phase transformations of the constituting elements with respect to the pressure, temperature, and compositions. The diagrams show the conditions that limit the different phases, namely solid, liquid, and gas. The diagram can also be utilized to verify the relations between the state variables. Most of the phase diagrams are temperature-pressure phase diagrams, with the variable parameter as the composition. Usually other variables such as solubility and pressure parameters are not indicated in the phase diagram. For a one-component system (unary phase diagram), the phase diagram is generally a function of temperature and pressure as the state variables, or temperature and volume. However, for a binary system (two-phase) having two components, the phase diagram is a function of temperature and composition as the state variables only. Coexisting of the different phases of the constituting elements is indicated in the phase diagram. A ternary phase diagram can be characterized by consisting of three phases in equilibrium.

Question

1. The unstretched length of spring AB is 3.3 m . If the block is held in the equilibrium position shown, determine the mass of the block at D.

2. Draw the tree-body diagram of the ring A. (Draw the vectors starting at the black dot.)

3 m
4 m
kAC 20 N/m
wwww
www
kAn 30 N/m
3 m
kAD 40 N/m
D

Quantities that have magnitude and direction but not position. Some examples of vectors are velocity, displacement, acceleration, and force. They are sometimes called Euclidean or spatial vectors.

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