Why incandescent bulbs are better? Incandescent bulbs cost much less than their energy-efficient alternatives – mainly CFLs (compact fluorescent lamps) and LEDs (light emitting diodes). Incandescents are inefficient – 90% of the energy goes toward heat and only 10% toward light. Incandescents also don’t last as long as CFLs and LEDs. What are the disadvantages […]
Can water cycle work without the sun?
Can water cycle work without the sun? Water constantly moves around the Earth and changes between solid, liquid and gas. This all depends on the Sun’s energy. Without the Sun there would be no water cycle, which means no clouds, no rain—no weather!” “And without the Sun’s heat, the world’s oceans would be frozen!” added […]
How do you gain clarity?
How do you gain clarity? How to Get Clarity Create some space. When we’re unclear on something (how we should reach a goal, for example) … Journal, iterate. Meditate & contemplate. Talk to others. When you have a little clarity, write it down. Take action to get clarity. Reflect after you take action & get […]
What are the methods of producing induced emf?
What are the methods of producing induced emf? The induced emf can be produced by changing : (i) the magnetic induction (B), (ii) area enclosed by the coil (A) and. (iii) the orientation of the coil (θ) with respect to the magnetic field. What is the use of induced emf? A motor has coils turning […]
What most likely caused the tilting of the Grand Canyon?
What most likely caused the tilting of the Grand Canyon? What most likely cause the tilting? Scientists believe that the boundary stratum between the Cretaceous and Paleocene periods were caused by an asteroid. Which organisms were most likely to survive the Cretaceous extinction? Birds: Birds are the only dinosaurs to survive the mass extinction event […]
Which is the limiting reactant in the reaction?
Which is the limiting reactant in the reaction? The limiting reactant (or limiting reagent) is the reactant that gets consumed first in a chemical reaction and therefore limits how much product can be formed. How do you find theoretical yield in grams? Theoretical Yield Quick Review Find the mole ratio between the reactant and the […]
What are the best electrodes for electrolysis?
What are the best electrodes for electrolysis? Steel and iron are the most commonly used for electrolysis of water. These electrodes are used as anode and it is sacrificed in electrolysis, as the anode rusts (get oxidized) and the cathode de-rusts (get reduced). What factors affect rate of electrolysis? There are many factors that affect […]
How can humans help pollution?
How can humans help pollution? Reduce the number of trips you take in your car. Reduce or eliminate fireplace and wood stove use. Avoid burning leaves, trash, and other materials. Avoid using gas-powered lawn and garden equipment. How can we reduce environmental degradation? 31+ Stunning Ways to Save the Environment from Destruction Change the way […]
Is thermal energy removed or added in boiling?
Is thermal energy removed or added in boiling? particles, rise to the top of the liquid and escape from the container. In the graph above, notice the energy changes that occur as thermal energy is added. The kinetic energy of particles increases until the liquid reaches its boiling point. At the boiling point, the potential […]
Is carbon dioxide made into sugar?
Is carbon dioxide made into sugar? Their process is similar to how trees and other plants slowly capture carbon dioxide from the atmosphere, converting it to sugars that store energy. What substances are recycled in photosynthesis and respiration? The four substances recycled during photosynthesis and respiration are: carbon dioxide (CO2), which is emitted as waste […]