Is sodium and magnesium an ionic compound? There is a strong electrostatic force of attraction between these oppositely charged ions – this is called an ionic bond. The slideshow shows ionic bonds being formed in sodium chloride, magnesium oxide and calcium chloride. How do you combine ionic charges? To find the formula of an ionic […]
What are disadvantages of DC?
What are disadvantages of DC? Disadvantages of DC Transmission: Due to commutation problem, electric power can’t be produced at High (DC) Voltage. In High Voltage transmission, we cant step-up the level of DC Voltage (As Transformer won’t work on DC). There is a limitation of DC switches and circuit breakers (and they are costly too). […]
How can you reduce unwanted energy transfers in a machine with moving touching components?
How can you reduce unwanted energy transfers in a machine with moving touching components? Mechanical devices can be made more efficient through lubrication to reduce the friction between moving parts of a machine and increase the amount of useful energy transferred. Can you put too much insulation in your attic? It is possible to over-insulate […]
Do cameras reflect or refract light?
Do cameras reflect or refract light? Yes, cameras refract light. The refraction of light happens as it travels through the lens of the camera and creates a larger or smaller picture…. How do mirrors and lenses affect the path of light rays? Summary: How do lenses and mirrors affect light? Plane mirrors and convex mirrors […]
Is Earth part of the Sagittarius dwarf galaxy?
Is Earth part of the Sagittarius dwarf galaxy? Brace yourself for a shock, bring out those handkerchiefs while wailing violins build to a crescendo around you: The earth is actually part of a formation called the Sagittarius Dwarf galaxy; an entity so small — in the larger scheme of the cosmos — that it got […]
What is a good working environment?
What is a good working environment? A positive working environment is a workplace that promotes employee safety, growth and goal attainment. Companies can achieve a positive working environment by focusing on their overall culture, supporting employee growth and making employees feel safe and comfortable. What is most important to you about a work environment? The […]
What is the most heat conductive liquid?
What is the most heat conductive liquid? Water Why is heat transfer important for thermal fluid design? The key point behind heat transfer fluid technology is the ability to generate high temperatures at low system pressures. Heat transfer fluid technology offers safety, low maintenance, and extending operating lifetimes when compared to traditional technologies such as […]
Do projectiles have a predictable path?
Do projectiles have a predictable path? Projectiles do not follow a predictable path. Where will the ball have the smallest speed? The speed is smallest at the highest point of its flight path because the y- component of the velocity is zero. At what point of the projectile path the speed is i minimum and […]
Which type of reaction releases energy quizlet?
Which type of reaction releases energy quizlet? Chemical reactions that release energy, usually in the form of heat, are called exothermic reactions. Chemical reactions that absorb energy, usually in the form of heat, are called endothermic reactions. Many types of reactions can be endothermic or exothermic. How is energy released in a chemical reaction quizlet? […]