What is the negative effects of mining? Across the world, mining contributes to erosion, sinkholes, deforestation, loss of biodiversity, significant use of water resources, dammed rivers and ponded waters, wastewater disposal issues, acid mine drainage and contamination of soil, ground and surface water, all of which can lead to health issues in local … How […]
Can a point mass have angular momentum?
Can a point mass have angular momentum? The Open Door Web Site : IB Physics : ANGULAR MOMENTUM OF A POINT MASS. Which means that the angular momentum of a point mass is equal to its linear momentum multiplied by its perpendicular distance from the point considered. What is the spin angular momentum of photon? […]
How do bats find their way?
How do bats find their way? As they fly they, make shouting sounds. The returning echoes give the bats information about anything that is ahead of them, including the size and shape of an insect and which way it is going. This system of finding prey is called echolocation – locating things by their echoes. […]
What three characteristics do all psychological tests have in common?
What three characteristics do all psychological tests have in common? 5 Main Characteristics of a Good Psychological Test Objectivity: The test should be free from subjective—judgement regarding the ability, skill, knowledge, trait or potentiality to be measured and evaluated. Reliability: This refers to the extent to which they obtained results are consistent or reliable. Validity: […]
How do I know if two lines are parallel?
How do I know if two lines are parallel? We can determine from their equations whether two lines are parallel by comparing their slopes. If the slopes are the same and the y-intercepts are different, the lines are parallel. If the slopes are different, the lines are not parallel. Unlike parallel lines, perpendicular lines do […]
How can you improve the results of an experiment?
How can you improve the results of an experiment? You can increase the validity of an experiment by controlling more variables, improving measurement technique, increasing randomization to reduce sample bias, blinding the experiment, and adding control or placebo groups. What is the minimum number of times an experiment should be repeated? Most teachers want you […]
What is Hamming distance between two strings?
What is Hamming distance between two strings? The Hamming distance between two strings of equal length is the number of positions at which the corresponding symbols are different. In other words, it is the number of substitutions required to transform one string into another. What is Hamming distance in machine learning? Hamming Distance. Hamming Distance […]
Who killed Aristotle?
Who killed Aristotle? Alexander the Great Who was Aristotle’s most famous student? What is the major contribution of Aristotle? Aristotle is a towering figure in ancient Greek philosophy, who made important contributions to logic, criticism, rhetoric, physics, biology, psychology, mathematics, metaphysics, ethics, and politics. He was a student of Plato for twenty years but is […]
What are the 4 Minnesota biomes?
What are the 4 Minnesota biomes? Minnesota is fortunate to lie at the center where four major North American ecological regions, or biomes, converge: aspen parklands, prairie grasslands, deciduous forest, and coniferous forest. What is the smallest biome in Minnesota? Tall Grass Aspen Parkland What is the most productive biome in Minnesota? Prairie Parkland Does […]
Why do ionic compounds have high melting and boiling points?
Why do ionic compounds have high melting and boiling points? It takes a lot of energy to overcome the strong electrostatic forces of attraction between oppositely charged ions, so ionic compounds have high melting and boiling points. The greater the charge on the ions, the stronger the forces holding them together. Is K2O covalent or […]