State which of the following statements are true and which are false. Give reasons for your answers. a) b) If you rub a children's balloon on a cat, it will then stick to the cat. This is an electrostatic effect. A galvanometer can be converted to a voltmeter by adding a large resistance in parallel to the galvanometer. Radioactive decay is predictable, so that e.g. a uranium atom will decay when it is 4 billion years old. c) d) e) Kinetic energy KE = 1½mv² is just a first approximation from E = mc² = ymoc² Sharp lines in the emission spectra of a gas discharge lamp are due to excited electrons falling back to lower states.
State which of the following statements are true and which are false. Give reasons for your answers. a) b) If you rub a children's balloon on a cat, it will then stick to the cat. This is an electrostatic effect. A galvanometer can be converted to a voltmeter by adding a large resistance in parallel to the galvanometer. Radioactive decay is predictable, so that e.g. a uranium atom will decay when it is 4 billion years old. c) d) e) Kinetic energy KE = 1½mv² is just a first approximation from E = mc² = ymoc² Sharp lines in the emission spectra of a gas discharge lamp are due to excited electrons falling back to lower states.
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter1: Units And Measurement
Section: Chapter Questions
Problem 15P: Use the orders of magnitude you found in the previous problem to answer the following questions to...
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