Category: Physics

How do the founder effect and bottlenecking differ? Bottlenecks and founder effects. Genetic drift can cause big losses of genetic variation for small populations. Population bottlenecks occur when a population’s size is reduced for at least one generation. A founder effect occurs when a new colony is started by a few members of the original […]

Are globular clusters in the Milky Way? Globular star clusters are known to be located mostly in the great spherical halo of the Milky Way. Spiral galaxies like our Milky Way contain stars, gas and dust, mostly organized into a flat disk containing the spiral arms, but with the addition of a more rounded bulge […]

What is the formula to find the mass? Determine mass with force and acceleration. Newton’s second law of motion states that force equals mass times acceleration: F = ma. If you know the net force on the object, and it’s acceleration, you can rearrange this formula to find the mass: m = F / a. […]

What are 5 facts about the Ring of Fire? 7 Hot Facts About the Pacific Ring of Fire It’s an International Sensation. Plate Tectonics Make the Whole Thing Possible. It’s Home to World’s Deepest Ocean Trench. It’s Littered With Volcanoes and Prone to Earthquakes. Its Quakes Aren’t Always Interconnected. It’s a Great Producer of Geothermal […]

What are the 3 schools of psychology? The following are some of the major schools of thought that have influenced our knowledge and understanding of psychology: Structuralism and Functionalism: Early Schools of Thought. Gestalt Psychology. The Behaviorist School of Thought in Psychology. The Psychoanalytic School of Thought. The Humanistic School of Thought. What are the […]

Which layer is closest to space? Layers of Earth’s Atmosphere exosphere—contains few particles that move into and from space. exobase—the lower boundary of the exosphere. thermosphere—temperature increases with height. The International Space Station orbits Earth in this layer. mesopause—the boundary between the mesosphere and the thermosphere; the coldest place on Earth. What layer are satellites? […]

Is water displacement dependent on mass? The concept of Archimedes’ principle is that an object immersed in a fluid is buoyed up by a force equal to the weight of the fluid displaced by the object. The mass of the displaced fluid can be expressed in terms of the density and its volume, m = […]

Why is o not stable? One oxygen atom is unstable since it has only 6 electrons in the outermost shell. For an atom to be stable it needs 8 electrons. So, for the oxygen atom to be stable it requires two more electrons in the valence shell. Why does O2 exist but not S2? In […]

Which stars are the youngest? If proven, the newly discovered neutron star will be the youngest one known by humanity, beating the current youngest supernova remnant is Cassiopeia A, which is 330 years old that can be found 11,000 light-years away from Earth and can be found within our galaxy. Why doesn’t the helium core […]

What is a magnetic field how can the direction? the magnetic fields are the imaginary line which moves from south to north. this lines do not overlap each other. we can find the direction of the magnetic field lines by keeping a compass near to it. Why do 2 magnets repel or attract each other? […]