Chapter 1: Problem 41
. All scientific knowledge is inherently provisional. Discuss whether this is a weakness or a strength of the scientific method.
Chapter 1: Problem 41
. All scientific knowledge is inherently provisional. Discuss whether this is a weakness or a strength of the scientific method.
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How are scientific theories tested?
The average distance from the Earth to the Sun is \(1.496 \times\) \(10^{8} \mathrm{~km}\). Express this distance (a) in light-years and (b) in parsecs. Use powers-of-ten notation. (c) Are light-years or parsecs useful units for describing distances of this size? Explain.
The diameter of the Sun is \(1.4 \times 10^{11} \mathrm{~cm}\), and the distance to the nearest star, Proxima Centauri, is \(4.2 \mathrm{ly}\). Suppose you want to build an exact scale model of the Sun and Proxima Centauri, and you are using a ball \(30 \mathrm{~cm}\) in diameter to represent the Sun. In your scale model, how far away would Proxima Centauri be from the Sun? Give your answer in kilometers, using powers-of-ten notation.
What is the difference between a hypothesis and a theory?
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