Category: Physics

How do we know the nucleus is positive? Rutherford deduced that the atomic nucleus was positively charged because the alpha particles that he fired at the metal foils were positively charged, and like charges repel. In Rutherford’s experiments most of the alpha particles passed straight through the foil without being deflected. Is a nucleus positive? […]

How do power lines kill birds? Birds can be injured or killed with they collide with electric lines in mid-flight. Although birds of all sizes and types collide with wires, their behavior and body type put them more at risk for line collisions. Can a human hang from a power line? Hanging from a power […]

What does the atomic mass tell you? The atomic mass tells us the weight of protons and neutrons. How do you know how many electrons there are surrounding the nucleus of a particular atom? Why isn’t the atomic mass always a whole number? Atomic mass is never an integer number for several reasons: The atomic […]

What is the primary difference between the concepts of health and wellness? In understanding the difference between health and wellness, in short, health is a state of being, whereas wellness is the state of living a healthy lifestyle (3). Health refers to physical, mental, and social well-being; wellness aims to enhance well-being. How do health […]

Is heat or ice best for pinched nerve? The combination of hot and cold increases the circulation of fresh blood to the area, which may help relieve pain. Hold an ice pack over the affected area for about 15 minutes at a time, three times a day to help reduce inflammation. Heat pads can be […]

What is meant by the statement potential difference between A and B is 3v? Answer: If we say the potential difference between two points is 3 volt it does mean that 3 joule of work is done in moving a unit positive charge between those points. What is meant by saying that the potential difference […]

What is going to happen in 2099? Artificial intelligence will move its influence beyond Earth’s limits to the entire Solar System, and then it will move on to other galaxies. Stars, planets, and meteors will be transformed into a structured matter capable of sustaining life. By 2099, machines will be capable of building computers the […]

How do you determine a two-force member? If an element has pins or hinge supports at both ends and carries no load in-between, it is called a two-force member. These elements can only have two forces acting upon them at their hinges. If only two forces act on a body that is in equilibrium, then […]

How do you thank someone for an extremely generous gift? “Thank you very much for your extremely generous donation to me and my family. It is greatly appreciated and I can’t thank you enough. May God bless you and yours.” How do you say thank you on your last day at work? “Dear Colleagues, As […]

Does Fire Insurance Pay arson? Arson is a crime while a fire due to a natural cause is not. One standard provision of fire insurance policies would be the exclusion of fires caused by arson. This means that when your property is damaged due to arson, you will not be entitled to collect any proceeds […]