What are two disadvantages to a coal power plant? The major disadvantage of coal is its negative impact on the environment. Coal-burning energy plants are a major source of air pollution and greenhouse gas emissions. In addition to carbon monoxide and heavy metals like mercury, the use of coal releases sulfur dioxide, a harmful substance […]
What made Leonardo da Vinci great?
What made Leonardo da Vinci great? Leonardo da Vinci was an artist and engineer who is best known for his paintings, notably the Mona Lisa (c. 1503–19) and the Last Supper (1495–98). His drawing of the Vitruvian Man (c. Read more about Leonardo da Vinci’s famous wall painting, the Last Supper. Did Leonardo da Vinci […]
Is heat dependent on mass?
Is heat dependent on mass? Heat is a type of energy, but temperature is not energy. Heat depends on mass of the substance, however; temperature does not depend on the quantity of matter. If you give heat to a matter, you increase its temperature or change its phase. Can something exist if it has no […]
What does 60 feet 6 inches mean in baseball?
What does 60 feet 6 inches mean in baseball? 60 feet 6 inches is a hallowed baseball number. It might be time for a change. Francis Richter, the editor of the weekly newspaper “Sporting Life,” helped promote the idea of moving the pitcher five feet further from the batter. Before the 1893 season, the National […]
Which transition causes the absorption line at the shortest wavelength?
Which transition causes the absorption line at the shortest wavelength? Which transition causes the emission line at the shortest wavelength? From the transitions, we can see that energy involved from the transition of E to C is the largest energy involved (longest arrow) which makes it having the shortest wavelength. What is the lowest possible […]
What happened to the alpha particles when they hit the gold foil?
What happened to the alpha particles when they hit the gold foil? Alpha particles only have 2 protons, so the positive charge is not strong enough to attract the electrons in the gold atom. It might have definitely interacted, with the electrons “pulling” them toward themselves, which result in a tiny force which pushed the […]
Do vitamins give energy?
Do vitamins give energy? Vitamin B-12, or cobalamin, is a nutrient you need for good health. It’s one of eight B vitamins that help the body convert the food you eat into glucose, which gives you energy. Vitamin B-12 has a number of additional functions. What are the main source of fresh water? precipitation What […]
What is the benefit of endurance training?
What is the benefit of endurance training? Endurance training will help you to build stamina and through this type of training your body will gradually be able to withstand longer exercise routines. Lasting benefits include weight loss, increased strength, better health, and overall lifestyle improvement. What is endurance and what are the benefits of endurance? […]
How do you calculate percent uncertainty in resistance?
How do you calculate percent uncertainty in resistance? The rule to calculate errors says that: When two quantities are multiplied or divided, the relative error is the sum of the relative errors in the individual quantities. So the uncertainty in resistance is 7%. What is the uncertainty of a resistor? Using the maximum values for […]
How does depression change your brain?
How does depression change your brain? There’s growing evidence that several parts of the brain shrink in people with depression. Specifically, these areas lose gray matter volume (GMV). That’s tissue with a lot of brain cells. GMV loss seems to be higher in people who have regular or ongoing depression with serious symptoms. What are […]