Why there is fall in temperature with altitude? As you increase in elevation, there is less air above you thus the pressure decreases. As the pressure decreases, air molecules spread out further (i.e. air expands) and the temperature decreases. If the humidity is at 100 percent (because it’s snowing), the temperature decreases more slowly with […]
What is called metal and nonmetal?
What is called metal and nonmetal? Elements can be divided into metals and nonmetals and it is important to know whether a particular element is a metal or nonmetal. Metals (like copper and aluminium) are good conductors of heat and electricity, while nonmetals (such as phosphorus and sulfur) are insulators. What is difference between metal […]
Why is friction so important to a moving vehicle?
What is the best magnification for a magnifying glass?
What is the best magnification for a magnifying glass? An average magnifying glass makes objects look 2 or 3 times bigger, which means it magnifies 2X or 3X. Geologists often like to have 5X to 10X magnification; however, anything higher than 10X is difficult to use in the field because the lenses are too small. […]
How is parallax distance calculated?
How is parallax distance calculated? Parallax Formula: p = parallax angle in arcseconds. d = distance in “Parsecs” Writing our parallax formula in this way allows us to define a new “natural” unit for distances in astronomy: the Parallax-Second or Parsec. What is the purpose of parallax error? It is an error caused by people […]
What is called the distance between TDC to BDC?
What is called the distance between TDC to BDC? Q: The distance the piston moves from TDC to BDC is called This distance, in either direction, is called “stroke”. What is TDC position of piston? TDC – Top Dead Centre is traditionally the position of an internal combustion engine’s piston when it is at the […]
What is the healthiest job to have?
What is the healthiest job to have? On the World Health Day, here’s a look at some of the best jobs for your health: Fitness Trainer. No surprises here. Health Professionals. Chiropractors, dentists, medical technicians and physical therapists have the best of both worlds. Landscaper. Nutritionist. Software Engineer. How much is the wellness industry worth […]
What happens if you drink water with high nitrates?
What happens if you drink water with high nitrates? Consuming too much nitrate can affect how blood carries oxygen and can cause methemoglobinemia (also known as blue baby syndrome). The U.S. Environmental Protection Agency (EPA) standard for nitrate in drinking water is 10 milligrams of nitrate (measured as nitrogen) per liter of drinking water (mg/L). […]
What two factors determine wave speed?
What two factors determine wave speed? Waves travel through a medium: A medium is any substance or region through which a wave is transmitted. The speed of a wave is dependant on four factors: wavelength, frequency, medium, and temperature. Wave speed is calculated by multiplying the wavelength times the frequency (speed = l * f). […]
When you see a divers down flag you must?
When you see a divers down flag you must? Vessels must remain at least 50 feet away from the flag. If they have to approach the diving area, operators must have permission from the person who placed the flag or the boat displaying the flag. Outside of 50 feet, vessel operators must operate at “idle […]