Category: Physics

Is forced hot air unhealthy? The biggest downside of using a forced air heating system is that it leaves you vulnerable to inefficiency stemming from ductwork problems. If your ductwork is well-designed, expertly installed, and kept in prime condition, then you’ll be able to heat your home quite efficiently. Is forced air heating cheaper? Other […]

Does salt water boil at 100 degrees? Adding salt does not lower the boiling point of water. Actually, the opposite is true. The usual boiling point of water is 100 °C or 212 °F at 1 atmosphere of pressure (at sea level). You would have to add 58 grams of salt just to raise the […]

What is the wavelength of an ocean wave? Spectrum Wave type Typical wavelength Disturbing force Capillary wave < 2 cm Wind Wind wave 60–150 m (200–490 ft) Wind over ocean Seiche Large, variable; a function of basin size Change in atmospheric pressure, storm surge Seismic sea wave (tsunami) 200 km (120 mi) Faulting of sea […]

What are the 3 major layers of the geosphere? The Earth’s geosphere is divided into three chemical sections: The crust, composed almost entirely of light elements, like silicon. The mantle, which is 68% of the Earth’s mass. The core, the innermost layer; it is composed of very dense elements, such as nickel and iron. What […]

When two or more solid substances are mixed together they liquefy is called? In chemistry, a mixture is a material system made up of two or more different substances which are mixed but are not combined chemically. A mixture refers to the physical combination of two or more substances in which the identities are retained […]

How is energy transferred from one object to another? The two ways that energy can be transferred are by doing work and by heat transfer. Can an object have work? In the physics sense, work is never something an object has. It is only something that one object does to another. Work changes the amount […]

What is the formula for NH4 and O? NH₄⁺ Is NH4 an acid or base? Weak base dissociation eg NH3 NH3 is a weak base and dissociates partially in solution (as indicated with reversible arrow) to form OH- and NH4+ ions. Since this is a reversible process, NH4+ can donate H+ to form back NH3. […]

Where is the location of Sun in Milky Way galaxy? Bottom line: The sun is about 1/3 the distance from the center of the Milky Way galaxy to its outer edges. It’s located in a smaller spiral arm, between two large arms, called the Orion Arm. Where are we located in the Milky Way quizlet? […]

What particle size is the easiest to erode? In a stream, the most easily eroded particles are small sand grains between 0.2 mm and 0.5 mm. Anything smaller or larger requires a higher water velocity to be eroded and entrained in the flow. What increases the size of particles carried increases? The average velocity (speed) […]

Why is the sodium potassium pump so important to the human body? In the kidneys the Na-K pump helps to maintain sodium and potassium balance in our body. It also plays a key role in maintaining blood pressure and controls cardiac contractions. What human body system depends on the sodium potassium pump? nervous system Why […]