Category: Physics

Which country has the smallest carbon footprint? Tuvalu What industry is the biggest polluter in the world? According to the report, fashion is responsible for 92 million tons of solid waste per year globally, representing 4% of the 2.12 billion tons of waste we dump globally each year. That is more than toxic e-waste and […]

Why do meteorologists use station models quizlet? Meteorologists created the station model to fit a number of weather elements into a small space on weather maps. This allows map users to analyze patterns in atmospheric pressure, temperature, wind speed & direction, cloud cover, precipitation, etc. How is the Doppler effect used to predict weather? Answer: […]

How do you sink wood in water? To saturate your wood you can soak it in water for a while. Keep some kind of weight on the wood to keep the entire piece submerged. The soaking will also help to leach tannins out of the wood which can discolour the water and can be harmful […]

Is there a ball that can bounce forever? The law of conservation of energy implies that a bouncing ball will bounce forever. Of course, it does not. When you drop it on the floor, it changes some of its energy into other forms, such as heat, each time it hits the floor. What are bouncy […]

Why does a spoon in a glass of water look bent? A spoon half-immersed in a glass of water appears bent at the surface of the water. We know that this is due to refraction of light, which bends the rays of light at the surface, so that the retinal image of the spoon is […]

What do you mean by eigen value and eigen function? Such an equation, where the operator, operating on a function, produces a constant times the function, is called an eigenvalue equation. The function is called an eigenfunction, and the resulting numerical value is called the eigenvalue. Eigen here is the German word meaning self or […]

What network design would contain the scope of disruption? What network design would contain the scope of disruptions on a network should a failure occur? Explanation: One way to contain the impact of a failure on the network is to implement redundancy. What are two functions of a router choose two? What are two functions […]

What happens if the car makes a sharp turn the passenger tend to move to one side of the car why? Explanation: It is inertia that causes the passengers to move toward the right side of the car. As the car swerves to left, passengers’ body continues their motion as hitherto and as such it […]

Can old bananas make you sick? Most of us tend to throw away overripe bananas, fearing they would no longer be fresh, and therefore, not fit to eat. Although overripe bananas may not really look very appetising–the fruit turns soggy while the banana peel may turn black or brown–they are very good for our health. […]

How do you calculate energy change? To calculate an energy change for a reaction: add together the bond energies for all the bonds in the reactants – this is the ‘energy in’ add together the bond energies for all the bonds in the products – this is the ‘energy out’ energy change = energy in […]