What is the catenary constant? The catenary constant, a, is both simple and incredibly useful. Equation 1 defines this value equal to horizontal tension, FH (force) divided by cable unit weight, w (force/length). Thus, a, has corresponding units of length. What is a catenary structure? In physics or geometry, a cable or a chain hanging […]
What are the 3 ways energy is used?
What are the 3 ways energy is used? Heating and cooling our homes, lighting office buildings, driving cars and moving freight, and manufacturing the products we rely on in our daily lives are all functions that require energy. How do we store energy? Energy can be stored in a variety of ways, including: Pumped hydroelectric. […]
What is the Ordovician era?
What is the Ordovician era? Paleozoic What era is Silurian? How long was a day in the Ordovician? 21 hours How long was the Silurian period? It began 443.8 million years ago and ended 419.2 million years ago, extending from the close of the Ordovician Period to the beginning of the Devonian Period. What started […]
How much time does it take for the heart to return to normal?
What temperature should the fridge be to avoid foodborne illness?
What temperature should the fridge be to avoid foodborne illness? Keep your appliances at the proper temperatures. Keep the refrigerator temperature at or below 40° F (4° C). The freezer temperature should be 0° F (-18° C). At what temperature does meat start growing bacteria? Bacteria grow most rapidly in the range of temperatures between […]
What are the common signs of a drunk driver?
What are the common signs of a drunk driver? Common signs of driver impairment include: Smell of alcohol or drugs emanating from the vehicle or on the driver. Slurred speech. Bloodshot, watery, or glassy eyes. Jerky movement. Fine motor skills problems. Admission of alcohol consumption before driving. General confusion. Awkward balance and coordination. Can you […]
Why is burning coal bad for the environment?
Why is burning coal bad for the environment? The burning of fossil fuels releases greenhouse gases into the atmosphere, increasing levels of CO2 and other gasses, trapping heat, and contributing to global climate change. Coal combustion releases the greenhouse gases carbon dioxide (CO2) and nitrous oxide (N2O) during combustion. Is oil or coal worse for […]
Which has more energy K or L?
What happens to electrons when they pass through a light bulb?
What happens to electrons when they pass through a light bulb? The electrons enter the light bulb filament with relatively high kinetic energies. As they travel through the filament they collide with metal atoms transferring mush of their kinetic energy to the metal. This energy raises the temperature of the metal. Which energy is used […]