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Questions and Answers
How does dimensional analysis help in formulating equations for physical quantities?
How does dimensional analysis help in formulating equations for physical quantities?
- By directly providing the numerical values for physical quantities
- By providing a method to check the dimensional consistency of equations (correct)
- By determining the uncertainty in measurements
- By proving the accuracy of experimental data
What are the key factors to consider when using dimensional analysis to derive formulas?
What are the key factors to consider when using dimensional analysis to derive formulas?
- The dimensions and units of the physical quantities involved (correct)
- The fundamental physical constants involved in the formula
- The experimental errors in the measurements
- The choice of coordinate system
Can you provide an example of how dimensional analysis is used to derive the formula for a specific physical quantity?
Can you provide an example of how dimensional analysis is used to derive the formula for a specific physical quantity?
- Calculating the formula for work done using energy conservation principles
- Deriving the formula for velocity from basic kinematic equations
- Determining the formula for gravitational force using Newton's laws
- Deriving the formula for electric field intensity from Coulomb's law (correct)
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