Does frequency change power? Frequency of the system will vary as load and generation change. Increasing the mechanical input power to a synchronous generator will not greatly affect the system frequency but will produce more electric power from that unit. Can I use a 60 Hz device in a 50 Hz power frequency? Electrical machines […]
What is real and apparent Expansivity?
What is real and apparent Expansivity? The real (or absolute) expansivity of a liquid is the fraction of its volume by which it expands per kelvin rise in temperature. The apparent expansivity of a liquid is the fraction of its volume by which the liquid appears to expand per kelvin rise in temperature when heated […]
Why is a sit up a second class lever?
Why is a sit up a second class lever? Second-Class Levers In a second-class lever, the resistance lies between the fulcrum and the force, as in a wheelbarrow. Exercises that require plantarflexing the ankle, such as seated or standing calf raises, employ a second-class lever. What’s an example of a second class lever? In a […]
What are the hardest airports to land at?
What are the hardest airports to land at? In no particular order, we’ve put together a list of the 25 most dangerous airports in the world that are every pilot’s worst nightmare! Courchevel Airport, France. Princess Juliana Airport, Caribbean. Matekane Air Strip, Lesotho. Tioman Island Airport, Malaysia. Juancho Airport, Caribbean. Gibraltar Airport. What is the […]
What are the rules for cyclists?
What are the rules for cyclists? You should: keep both hands on the handlebars except when signalling or changing gear. keep both feet on the pedals. never ride more than two abreast, and ride in single file on narrow or busy roads or when riding round bends. not ride close behind another vehicle. Do road […]
Which is the correct way to write 602200000000000000000000 in scientific notation?
Which is the correct way to write 602200000000000000000000 in scientific notation? The correct way to write 602,200,000,000,000,000,000,000 in scientific notation is 6 Which is the best example of a number written in scientific notation? Scientific notation is a way of writing very large or very small numbers. A number is written in scientific notation when […]
How do you know if a reaction is endothermic or exothermic?
How do you know if a reaction is endothermic or exothermic? An exothermic process releases heat, causing the temperature of the immediate surroundings to rise. An endothermic process absorbs heat and cools the surroundings.” Is Melting Chocolate endothermic? endothermic – An endothermic reaction occurs when the elements are absorbing the heat allowing the solution to […]
What percentage of trucks can be expected to travel either less than 30 or more than 65 thousand miles in a year?
What is the pathway of sound vibrations to the inner ear?
What is the pathway of sound vibrations to the inner ear? The vibrations are transmitted further into the ear via three bones (ossicles): malleus (hammer), incus (anvil), and the stapes (stirrup). These three bones form a bridge from the tympanic membrane to the oval window. 5. Once sound passes through the oval window, it enters […]
When a positive charge moves in the direction of the electric field what happens?
When a positive charge moves in the direction of the electric field what happens? (1), we see that the direction of the electric field vector at any given point is the same as the direction of the force that the field exerts on a positive test charge located at that point. A positive test charge […]