What are we looking at when we see the Milky Way? When you observe the night sky with your eyes, you can see the Moon, perhaps several planets, and many stars. If you are in a particularly dark location and if the moonlight is not too bright, you may also see a faint band of […]
Why are SI prefixes used?
Why are SI prefixes used? SI prefixes are used to form decimal multiples and submultiples of SI units. They should be used to avoid very large or very small numeric values. The prefix attaches directly to the name of a unit, and a prefix symbol attaches directly to the symbol for a unit. What is […]
What are three methods meteorologists use to collect weather data?
What are three methods meteorologists use to collect weather data? How do weather forecasters predict the weather? Meteorologists use maps, charts, and computers to analyze weather data and prepare forecasts. What is a visual representation of moving weather conditions? Weather symbol – a visual representation of a weather condition. Wind conditions – how fast and […]
What are the disadvantages of eating chips?
What are the disadvantages of eating chips? Too many chips can raise your blood pressure. You could develop cancer. It can increase your chances of heart disease. It can increase your risk of stroke. There’s also risk of infertility. It can cause intense weight gain. They’ve been linked to depression. What are the benefits of […]
How many times can you sharpen skis?
How can you tell if Chrome is stainless steel?
What airfoil generates the most lift?
What airfoil generates the most lift? Airfoil Three generated the most lift due to the oval arc shape. Lift is caused by the faster movement of air on the top side of an airfoil. What is the more common name of the empennage? The empennage, commonly called the tail assembly (see figure 1-7), is the […]
How do halogens kill bacteria?
How do halogens kill bacteria? Halogens. Other chemicals commonly used for disinfection are the halogens iodine, chlorine, and fluorine. Iodine works by oxidizing cellular components, including sulfur-containing amino acids, nucleotides, and fatty acids, and destabilizing the macromolecules that contain these molecules. What are the 3 types of sterilization? Three primary methods of medical sterilization occur […]
What does it mean to reject heat?
What does it mean to reject heat? Typically in heating, ventilation and air-conditioning systems, air cooling rejects heat to the outside air by circulating ‘outside’ air over coils containing ‘hot’ fluid returning from the building. Heat is transferred from the coil to the air which is then rejected to the outside. Does all work end […]