Category: Physics

Why is longitude 180 degrees? As we move East-West, we change through 360 degrees. As we move North-South, we change through 180 degrees. In other words, going from the North Pole to the South Pole is 180 degrees. These spherical coordinates (latitude and longitude) indicate locations on a 3-dimensional representation of the Earth. What are […]

Which effect did Reconquista have? The Reconquista had the ultimate effect of driving Muslims out of the Iberian Peninsula, and contributed to the unification of a single Spanish kingdom. Which two religions were affected by the Reconquista? The Siege of Toledo was a key moment in the struggle between the Christians and Muslims in the […]

How much does it cost to build a house in Southampton? It’s tough to say with land because people could pay any number per square foot for land, but to build, a general rule of thumb is about $400 per square foot. That’s hard cost, site work and soft costs. How much does it cost […]

Why is the middle class getting poorer? The middle classes are getting squeezed particularly hard by the rising costs of education, health care and housing. Real, disposable incomes for the middle class have not grown since the middle of last decade, while incomes for the top 10% are hitting new highs, the OECD calculates. What […]

Is biking 30 miles Hard? Thirty miles on a cheap bike can be difficult. If your bike is not sized properly, it could and up hurting a lot. Even if the bike is sized correctly, thirty miles takes about two hours on a road bike at a slow pace. Is biking 50 miles Hard? Completing […]

What is cell tag? Cell tags are used to find single cells or classes of cells. For example, all title cells could be given the tag Title, and all cells related to a particular subject could be given a cell tag identifying that subject. What is a row cell? A cell is the intersection of […]

What front occurs when a fast moving warm air mass overtakes a slower moving cold air mass? occluded front forms What happens when two different air masses meet? When two air masses meet together, the boundary between the two is called a weather front. At a front, the two air masses have different densities, based […]

Is HH polar or nonpolar? The hydrogen molecule (H2) shown below is an example of this. The electronic cloud surrounding the two atoms is highly symmetrical, and the H-H bond is said to be nonpolar. Now consider the case of hydrogen chloride, H-Cl. Is HF a nonpolar covalent bond? A completely nonpolar bond occurs when […]

What is the advantage of 22 inch wheels? A Sport Utility Vehicle implies that it should be able to carry loads and do it over uneven terrain. 22″ rims necessitate low-profile tires (otherwise the wheel won’t fit in the wheel well) to maintain acceptable overall wheel diameter. Low-profile tires means there’s less rubber between the […]

Is Optoutprescreen com legitimate? Many people have wondered if optoutprescreen.com is a legitimate website and not just a scam itself. Optoutprescreen.com is actually what it appears to be and that is a way to get off those mailing lists. Yes, they do ask you for your social security number, however, they need to be able […]