Which of the following accurately describes how scientists use models?
A. To make science seem more complex and inaccessible
B. To take measurements of an object, process, or system as it is in
nature
C. To make direct observations of a natural object, process, or
system
D. To represent objects, processes, and systems that are too large,
too small, or too complex to study directly
Answers: 3
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An object is located 30.0 cm from a concave mirror. the focal length is 15.0 c,. what is the image distance? a. 30.0 cm b. -10 cm c. 10.0 cm d. -30.0 cm
Answers: 1
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The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.939 w/m^2 . the wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. how much total electromagnetic energy falls on the area during 1.0 minute?
Answers: 2
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Given the data calculated in parts a, b, c, and d, determine the initial rate for a reaction that starts with 0.85 m of reagent a and 0.70 m of reagents b and c?
Answers: 1
Which of the following accurately describes how scientists use models?
A. To make science seem more...
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