Physics, 12.03.2020 17:04 rockinrosh12
Isaac Newton was an English physicist who lived in the mid 1600s to the early 1700s. Newton stated that all objects are attracted to each other by the force of gravity. James Joule was also an English physicist who lived in the 1800s. Joule stated that energy could change forms, but it could not be created or destroyed. How are these two statements similar? A. Neither statement was supported by scientific evidence. B. Both statements are examples of scientific laws. C. Neither statement is considered true today. D. Both statements were proposed in the same century.
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Physics, 21.06.2019 21:50
Apossible explanation for a set of facts that can be tested by further investigation is called
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Physics, 22.06.2019 02:00
Chapter 23, problem 075 the figure shows a geiger counter, a device used to detect ionizing radiation (radiation that causes ionization of atoms). the counter consists of a thin, positively charged central wire surrounded by a concentric, circular, conducting cylindrical shell with an equal negative charge. thus, a strong radial electric field is set up inside the shell. the shell contains a low-pressure inert gas. a particle of radiation entering the device through the shell wall ionizes a few of the gas atoms. the resulting free electrons (e) are drawn to the positive wire. however, the electric field is so intense that, between collisions with gas atoms, the free electrons gain energy sufficient to ionize these atoms also. more free electrons are thereby created, and the process is repeated until the electrons reach the wire. the resulting "avalanche" of electrons is collected by the wire, generating a signal that is used to record the passage of the original particle of radiation. suppose the radius of the central wire is 24 âµm, the inner radius of the shell 2.3 cm, and the length of the shell 14 cm. if the electric field at the shell's inner wall is 2.8 ă— 104 n/c, what is the total positive charge on the central wire?
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Physics, 22.06.2019 03:00
Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx hurrim timed
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Isaac Newton was an English physicist who lived in the mid 1600s to the early 1700s. Newton stated t...
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