Is electromagnetic force affected by intervening medium? EM force does not need any intervening medium. Why is gravitational force independent of medium? Gravity is unipolar, attractive. So when it goes through a medium, there is no polarizing effect or polarizing forces. Thus the gravitational constant is independent of the intervening medium. Does electrostatic force depend […]
What are ionic compounds formed by?
What are ionic compounds formed by? Ionic compounds are compounds composed of ions, charged particles that form when an atom (or group of atoms) gains or loses electrons. (A cation is a positively charged ion; an anion is a negatively charged ion.) Covalent or molecular compounds form when elements share electrons in a covalent bond […]
What are two plant processes?
What are two plant processes? Fundamental processes such as photosynthesis, respiration, plant nutrition, plant hormone functions, tropisms, nastic movements, photoperiodism, photomorphogenesis, circadian rhythms, environmental stress physiology, seed germination, dormancy and stomata function and transpiration, both parts of plant water relations. What occurs only in plants? Photosynthesis occurs only in plants, algae, and some bacteria. How […]
How do we calculate tension?
When electric field is applied on the ends of a conductor the free electrons start moving in direction?
When electric field is applied on the ends of a conductor the free electrons start moving in direction? These free electrons inside the conductor move randomly and frequently collide with heavier atoms and change their direction of motion every time. When a steady electric field is applied to the conductor, the electrons start moving towards […]
Who was one of the first scientist to realize the effects of CO2 in the atmosphere?
Who was one of the first scientist to realize the effects of CO2 in the atmosphere? Svante Arrhenius When was the last time the highest carbon dioxide was recorded in history? The highest recorded measurement in 2018 was 415.70 ppm on May 15, 2019, higher than it has ever been during human history. Yale’s Environment […]
Are entering an expressway and are in the acceleration lane you should speed up to?
Does cactus need sunlight?
Does cactus need sunlight? Cacti and succulents thrive with good light sources, and it is best to place cacti and succulents in a bright place. A south facing position will provide good sunlight. However, be careful to not put them in direct sunlight because the intense light can make the plants turn a yellow colour. […]
How do astronomers detect dark matter?
How do astronomers detect dark matter? Galaxy clusters are particularly important for dark matter studies since their masses can be estimated in three independent ways: From the scatter in radial velocities of the galaxies within clusters. From X-rays emitted by hot gas in the clusters. Is dark matter invisible? Scientists have not yet observed dark […]