Action and reaction forces are parts of
A) a single interaction.
B) a pair of interactions.
C) multiple interactions.
Answer: A
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Instructions: On occasion, the notation 
= [A, ?] will be a shorthand notation for 
.
?
Exhibit 3-4
The diagram below shows the path taken by a sailboat tacking sideways because it cannot sail directly into the wind.
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?
Use this exhibit to answer the following question(s).
Refer to Exhibit 3-4. The total distance it travels is
A. 1000 m.
B. 1732 m.
C. 2000 m.
D. 6298 m.
E. 8000 m.
It is likely that both Pluto and Triton were originally ________
Fill in the blank(s) with correct word
An advantage of epoxy over thermoplastic polymers as the matrix in composite materials is that the epoxy resin and hardener are _________when mixed and can be impregnated into the fabric of the composite material.
Fill in the blank(s) with the appropriate word(s).
A coal-fired plant generates 600 MW of electric power. The plant uses 4.8 × 106 kg of coal each day. The heat produced by the combustion of coal is 3.3 × 107 J/kg
The steam that drives the turbines is at a temperature of 300°C, and the exhaust water is at 37°C. (a) What is the overall efficiency of the plant for generating electric power? (b) What is the maximum efficiency that this plant could possibly have using the same temperature extremes that it presently uses? (c) How much thermal energy is exhausted each day by this plant? What will be an ideal response?