University Physics, Volume 2 - Technology Update Custom Edition for Texas A&M - College Station, 2/e
1st Edition
ISBN: 9781323390382
Author: YOUNG
Publisher: Pearson Education
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Textbook Question
Chapter 1, Problem Q1.1DQ
How many correct experiments do we need to disprove theory? How many do we need to prove a theory? Explain.
Expert Solution & Answer
To determine
The number of experiments required to validate any theory.
Answer to Problem Q1.1DQ
Any experiment is based on one or another theory and these theories are the combinations of various known facts and various non practical hypothesis of virtual science. Due to certain set of condition and parameters, a particular theory is designed and it changes from time to time and person to person depending upon perception of individual for the same incident.
Explanation of Solution
Any theory derived for any incident is based on certain set of conditions like physical value, apparatus used, method of processing and surrounding. These theories changes by changing any of the factor in the respective way. One cannot validate any theory by certain combination of experiment because by the change of any factor the experiment will not give the same result as it needs to be.
Conclusion: Therefore, there is no definite number of experiments that needs to perform for the validation of any theory as right and wrong
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The force of the quadriceps (Fq) and force of the patellar tendon (Fp) is identical (i.e., 1000 N each). In the figure below angle in blue is Θ and the in green is half Θ (i.e., Θ/2). A) Calculate the patellar reaction force (i.e., R resultant vector is the sum of the horizontal component of the quadriceps and patellar tendon force) at the following joint angles: you need to provide a diagram showing the vector and its components for each part. a1) Θ = 160 degrees, a2) Θ = 90 degrees. NOTE: USE ONLY TRIGNOMETRIC FUNCTIONS (SIN/TAN/COS, NO LAW OF COSINES, NO COMPLICATED ALGEBRAIC EQUATIONS OR ANYTHING ELSE, ETC. Question A has 2 parts!
The force of the quadriceps (Fq) and force of the patellar tendon (Fp) is identical (i.e., 1000 N each). In the figure below angle in blue is Θ and the in green is half Θ (i.e., Θ/2). A) Calculate the patellar reaction force (i.e., R resultant vector is the sum of the horizontal component of the quadriceps and patellar tendon force) at the following joint angles: you need to provide a diagram showing the vector and its components for each part. a1) Θ = 160 degrees, a2) Θ = 90 degrees. NOTE: USE DO NOT USE LAW OF COSINES, NO COMPLICATED ALGEBRAIC EQUATIONS OR ANYTHING ELSE, ETC. Question A has 2 parts!
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Chapter 1 Solutions
University Physics, Volume 2 - Technology Update Custom Edition for Texas A&M - College Station, 2/e
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