What does tidal heating cause?

What does tidal heating cause? The more the tidal force changes, the more the moon stretches, and the more it heats. This heat causes activity like volcanoes and geysers and can keep water liquid to form oceans. Why is tidal heating important? Tidal heating is responsible for the geologic activity of the most volcanically active […]

Is it safe to zipline?

Is it safe to zipline? Researchers at Ohio State University found that almost 12 percent of zip-line injuries resulted in fractures or other injuries requiring hospitalization, making zip-lining mishaps at least as serious as rock climbing. Has anyone died on a zipline? There have been fatal zip-line crashes in the U.S., including two in Utah, […]

What are the 3 types of density?

What are the 3 types of density? Population density is often measured in three different ways. There is arithmetic density, physiological density, and agricultural density. Which country has the highest arithmetic density? Macau What is the most overpopulated country in the world? India’s population is projected to surpass China’s as soon as 2022. While this […]

How do you identify a BJT?

How do you identify a BJT? Bipolar Junction Transistor (BJT) In plastic casing, one side of the transistor is Flat which is the front side and the pins are arranged serially. To identify the pins, keep the front flat side facing you and count the pins as one, two etc. In most NPN transistors it […]

Is it better to insulate walls or roof?

Is it better to insulate walls or roof? If you were on a very skinny budget and had to make a choice, you would insulate your ceiling first. Installing ceiling insulation can save around 35% on heating and cooling energy. Compare this to insulating your walls. Insulating your walls saves around 15% on heating and […]

Is unexpected color change physical or chemical?

Is unexpected color change physical or chemical? Whatever the reaction, it’s important to recognize that one or more new substances are formed! Burning wood is a common example of a chemical reaction because as the wood reacts with oxygen after it has been ignited, it creates smoke and ashes. Signs of a chemical reaction include: […]

Is electricity and magnetism the same?

Is electricity and magnetism the same? 3) Electricity and magnetism are essentially two aspects of the same thing, because a changing electric field creates a magnetic field, and a changing magnetic field creates an electric field. (This is why physicists usually refer to “electromagnetism” or “electromagnetic” forces together, rather than separately.) How can we prevent […]

What is a DNA code?

What is a DNA code? The DNA code contains instructions needed to make the proteins and molecules essential for our growth, development and health. The cell reads the DNA code in groups of three bases. Each triplet of bases, also called a codon, specifies which amino acid? will be added next during protein synthesis. What […]

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