Does fire destroy atoms? No, atoms don’t burn. No fire on Earth would destroy an atom. Fires typically are a function of the heat of chemical reactions. For instance, burning wood takes a carbon and hydrogen based material and forms carbon dioxide and water out of these atoms, plus heat. How many atoms does fire […]
What is an example of a fusion reaction?
What is an example of a fusion reaction? Nuclear fusion is a process in which atomic nuclei are fused together to form heavier nuclei. Like fission, nuclear fusion can also transmute one element into another. For example, hydrogen nuclei fuse in stars to form the element helium. Is nucleosynthesis a fusion? Stars fuse light elements […]
Which converging lens has the greatest power?
Which converging lens has the greatest power? The convex lens of smaller focal length (= 20 cm) has greater power since focal length is reciprocal of power. Has more focal length then its power will be? Answer. Answer: Thick lens will have shorter and consequently thin lens will have greater focal length. Because, For a […]
What is standard fixed point?
What is standard fixed point? Common fixed points: ice point – temperature when pure water ice is in equilibrium with liquid water at standard atmospheric pressure (76mm Hg). steam point – temperature when pure liquid water exists in equilibrium with water vapour at standard atmospheric pressure. Which of the following temperature is the highest? The […]
How long does it take torn muscles to heal?
How long does it take torn muscles to heal? For a mild strain, you may be able to return to normal activities within three to six weeks with basic home care. For more severe strains, recovery can take several months. In severe cases, surgical repair and physical therapy may be necessary. With proper treatment, most […]
Will a high pH kill fish?
Will a high pH kill fish? Very high (greater than 9.5) or very low (less than 4.5) pH values are unsuitable for most aquatic organisms. Young fish and immature stages of aquatic insects are extremely sensitive to pH levels below 5 and may die at these low pH values. High pH levels (9-14) can harm […]
What is difference between series and parallel circuit?
What is difference between series and parallel circuit? In a series circuit, all components are connected end-to-end, forming a single path for current flow. In a parallel circuit, all components are connected across each other, forming exactly two sets of electrically common points. Which is an example of a parallel circuit? An example of a […]
What happens at 1.5 degrees warming?
What happens at 1.5 degrees warming? According to the report, with global warming of 1.5 °C there would be increased risks to “health, livelihoods, food security, water supply, human security, and economic growth.” Impact vectors include reduction in crop yields and nutritional quality. What is the cause of climate change Wikipedia? Climate change is caused […]
How long should I wash my hands during the COVID-19 pandemic?
How long should I wash my hands during the COVID-19 pandemic? Thorough hand hygiene after any cough or sneeze is required. The WHO also recommends that individuals wash hands often with soap and water for at least 20 seconds, especially after going to the toilet or when hands are visibly dirty, before eating and after […]
Why do elements have different line spectra?
Why do elements have different line spectra? The energy levels that are allowed for each atom depend upon the number and arrangement of protons and electrons in the atom. As each element has different energy states available to it, each element releases photons of different color when its atoms return to their lower energy states. […]