Category: Physics

Do wider tires affect gas mileage? For example, larger tires decrease your fuel economy because they are heavier, while smaller tires increase fuel efficiency. Bigger tires also have a higher rolling resistance than smaller tires which means they require more resistance and effort to get them rolling. What are good tires for rain? The 10 […]

Why is 7 a lucky number in the Bible? Number 7 is considered to be the number of the spiritual perfection because it is a symbol of God’s work. Maybe you didn’t know but number 7 was the most sacred number to the Hebrews. As we have already said, this number is a symbol of […]

What is the difference between being charged and being indicted? A charge is brought against someone by a prosecutor. But in an indictment, a grand jury brings the charges against the defendant. All indictments are charges, but not all charges are indictments. How do you know if you’re being indicted? Basically, if federal agents came […]

What is the force of gravity in Newtons? G represents the gravitational constant, which has a value of 6.674⋅10−11N(m/kg)2 6.674 ⋅ 10 − 11 N (m/kg) 2 . Because of the magnitude of G , gravitational force is very small unless large masses are involved. Is gravity a pushing force? In general relativity, gravity neither […]

Does velocity increase with mass? The mass of an object does not change with speed; it changes only if we cut off or add a piece to the object. Can momentum be lost? That is, the momentum lost by object 1 is equal to the momentum gained by object 2. In most collisions between two […]

How can I get hydrated quickly? If you’re worried about your or someone else’s hydration status, here are the 5 best ways to rehydrate quickly. Water. While it likely comes as no surprise, drinking water is most often the best and cheapest way to stay hydrated and rehydrate. Coffee and tea. Skim and low fat […]

How far should your house be from power lines? For 133 kV Power lines you have to maintain 100 feet distance. For 230 kV Power lines you have to maintain 150 feet distance. For 345 kV Power lines you have to maintain 250 feet distance. Is it dangerous to live near power transformers? Most scientists […]

What is explosion in class 8? CBSE NCERT Notes Class 8 Chemistry Combustion and Flame. The type of combustion reaction that occurs with the evolution of tremendous amount of heat, light, gases and sound is known as Explosion. For instance, when we burn a cracker it bursts with the liberation of tremendous amount of heat, […]

Why do water bottles have an air hole? When you cover up the lid to the bottle, the water is pulling down but that air up in the top of the bottle is becoming a vacuum. In doing so, it keeps the water in! When you release the hole on the top, there is no […]

Is viscosity dependent on temperature? According to the kinetic theory of gases, viscosity should be proportional to the square root of the absolute temperature, in practice, it increases more rapidly. With high temperatures, viscosity increases in gases and decreases in liquids, the drag force will do the same. Does salt increase surface tension? Yes, adding […]