How far back can carbon dating date? C (the period of time after which half of a given sample will have decayed) is about 5,730 years, the oldest dates that can be reliably measured by this process date to approximately 50,000 years ago, although special preparation methods occasionally make accurate analysis of older samples possible. […]
What is Sir effect?
What is Sir effect? SIR effect finds immense use in explaining Stability of carbocation, acidity and basicity of organic compounds: For example(1): Ortho substituted Benzoic acid is more acidic then meta or para substituted benzoic acid irrespective of nature of group (electron donating group or electron withdrawing group) Is ortho effect and Sir effect same? […]
What does an alpha level of .05 mean?
What does an alpha level of .05 mean? What Is the Significance Level (Alpha)? The significance level, also denoted as alpha or α, is the probability of rejecting the null hypothesis when it is true. For example, a significance level of 0.05 indicates a 5% risk of concluding that a difference exists when there is […]
What is the angle between electric field and dipole moment at an equatorial point?
What is the angle between electric field and dipole moment at an equatorial point? What is the angle between the electric dipole moment and the electric field on the equatorial line of the dipole? On equatorial line, the direction of electric field is reversed to that of angle of axial line. Therefore, the angle between […]
Is veal a good substitute for lamb?
Is veal a good substitute for lamb? Lamb, goat, ox. In some countries, it’s common to substitute veal with lamb meat. However, lamb, goat, and ox are usually considered second-class veal replacements. These cuts are generally less tender than veal and have a strong flavor that may overwhelm the outcome of your dish. Is Lamb […]
What are the 3 types of regions in geography?
What are the 3 types of regions in geography? Geographers have identified three types of regions: formal, functional, and vernacular. What is place in the 5 themes of geography? Place describes the human and physical characteristics of a location. Physical characteristics: Includes a description of such things as mountains, rivers, beaches, topography, climate, and animal […]
Is Melting snow a physical change?
Why does tightening a string increase pitch?
Why does tightening a string increase pitch? Tightening the string gives it a higher frequency while loosening it lowers the frequency. This higher frequency of vibration means that the air particles around the string carry a higher frequency sound wave to your ear, which perceives the higher frequency as a higher pitch. What happens if […]
Do positive and negative charges cancel?
Do positive and negative charges cancel? In Gauss’s Law for electric fields it’s the net flux that matters and an equal amount of positive and negative charge will cancel. In everyday life pretty much everything appears to lack any kind of charge despite being made up largely by particles that do have charge. How can […]
How do you simplify and solve equations?
How do you simplify and solve equations? Here are the basic steps to follow to simplify an algebraic expression: remove parentheses by multiplying factors. use exponent rules to remove parentheses in terms with exponents. combine like terms by adding coefficients. combine the constants. How do you simplify algebraic? To simplify any algebraic expression, the following […]