What affects the rate of heat transfer? Factors that affect rate of heat flow include the conductivity of the material, temperature difference across the material, thickness of the material, and area of the material. Different materials have greater or lesser resistance to heat transfer, making them better insulators or better conductors. How can you increase […]
How does the earth tilt affect you?
How does the earth tilt affect you? But Earth’s distance from the sun doesn’t change enough to cause seasonal differences. Instead, our seasons change because Earth tilts on its axis, and the angle of tilt causes the Northern and Southern Hemispheres to trade places throughout the year in receiving the sun’s light and warmth most […]
What is peak power in radar?
What is peak power in radar? The more energy the radar system transmits, the greater the target detection range will be. The energy content of the pulse is equal to the peak (maximum) power level of the pulse multiplied by the pulse width. Peak power must be calculated more often than average power. What is […]
Is a starfish a Benthos?
Is a starfish a Benthos? Stuck on the Bottom The benthos live on the ocean floor. Starfish, oysters, clams, sea cucumbers, brittle stars and anemone are all benthos. Most benthos feed on food as it floats by or scavenge for food on the ocean floor. Is a starfish Nekton? Nekton are the free swimmers and […]
What is petroleum most commonly used for?
What is petroleum most commonly used for? What are petroleum products, and what is petroleum used for? Petroleum products include transportation fuels, fuel oils for heating and electricity generation, asphalt and road oil, and feedstocks for making the chemicals, plastics, and synthetic materials that are in nearly everything we use. How does petroleum oil affect […]
Does staying in the shade prevent sunburn?
Does staying in the shade prevent sunburn? Share this blog: While shade is a potentially valuable means of protection from the damaging effects of the sun’s ultraviolet (UV) rays, not all shade is equally protective. People can spend long hours in the shade while still receiving quite a lot of sun exposure and risking skin […]
Are there any shortwave stations left?
Are there any shortwave stations left? In North America and Europe, many of the major broadcasters have disappeared or minimized their presence. In fact, the BBC World Service no longer beams programming via shortwave to the Americas or most of Europe. “Shortwave is still significant in much of Africa, South Asia and parts of Latin […]
Why is metal shiny?
Why is metal shiny? The electrons that are farthest from the nucleus give a metal its shine. Light reflects, or bounces off, these outer electrons. This makes the metal appear shiny. This shiny appearance on the surface of some metals is called luster. What is the least ductile metal? gold can Is copper more ductile […]
Which of these are ways to protect yourself from electrical hazards?
Which of these are ways to protect yourself from electrical hazards? Avoid electrical hazards both in your home and elsewhere: Never touch a fallen power line. Avoid contact with overhead power lines during cleanup and other activities. Do not drive through standing water if downed power lines are in the water. Is arc flash an […]