COSMIC PERSPECTIVE FUND.(LL BK+CODE)
COSMIC PERSPECTIVE FUND.(LL BK+CODE)
3rd Edition
ISBN: 9780135720158
Author: Bennett
Publisher: PEARSON
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Chapter 12, Problem 4QQ

Choose the best answer to each of the following. Explain your reasoning.

According to Lcavitt’s law, we can determine the luminosity of a Cepheid in a distant galaxy by (a) measuring its parallax. (b) measuring its period of brightening and dimming. (c) measuring its recession speed.

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How do I  plot the force F in Matlba (of gravity pulling on the masses) versus spring displacement, and fit the data with a linear function to find the value for the spring constant. To get a linear fit, use polynomial order 1. Report the value of 'k' from the fit.   What code is used?
Ok im confused on this portion of the questions being asked.  the first snip is the solution you gave which is correct. BUt now it is asking for this and im confused. The magnitude of the force F_11 is __________LB. The direction of the force F_11 is __________LB.
No chatgpt pls will upvote
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