What is scale variable? Essentially, a scale variable is a measurement variable — a variable that has a numeric value. This could be an issue if you’ve assigned numbers to represent categories, so you should define each variable within the measurement area individually. What types of scales are used to measure the variables? Four Types […]
Is sand a good thermal insulator?
Is sand a good thermal insulator? Saturated sand has a thermal conductivity in the range of 2-4 W/m-K which causes the sand layer thickness to go astronomical. Thus it can be shown that sand is a good replacement for fiberglass pipe insulation in underground, direct buried applications. It’s easier to install and costs less. Does […]
Is a northern harrier a hawk?
Is a northern harrier a hawk? The Northern Harrier is distinctive from a long distance away: a slim, long-tailed hawk gliding low over a marsh or grassland, holding its wings in a V-shape and sporting a white patch at the base of its tail. Where do harrier hawks nest? swamps How long do harrier hawks […]
When exercising in hot weather what should you be paying attention to?
When exercising in hot weather what should you be paying attention to? When you exercise in hot weather, keep these precautions in mind: Watch the temperature. Pay attention to weather forecasts and heat alerts. Get acclimated. Know your fitness level. Drink plenty of fluids. Dress appropriately. Avoid midday sun. Wear sunscreen. Have a backup plan. […]
How do you mess up a GPS signal?
How do you mess up a GPS signal? How a GPS jammer works: The user plugs the jammer into the automotive auxiliary power outlet. The unit is placed close to the installed GPS tracker. When active, the GPS jammer generates an interference signal over a 5 to 10 meter radius to disrupt reception of the […]
Does benzene absorb UV light?
Does benzene absorb UV light? Note that both benzene and naphthacene absorb light in the near ultraviolet but that the latter does so much more intensely. A solution of naphthacene will absorb almost 100 times as much light at 250 nm. as a solution of benzene of the same molar concentration. Can light break bonds? […]
Which organ is responsible for oxidizing 90% of consumed alcohol?
Which organ is responsible for oxidizing 90% of consumed alcohol? Alcoholic liver disease—As the chief organ responsible for the breakdown of alcohol, the liver is particularly vulnerable to alcohol metabolism’s effects. More than 90 percent of people who drink heavily develop fatty liver, a type of liver disease. Which alcohol is easiest on your liver? […]
What are the 5 different types of PFDS?
What are the 5 different types of PFDS? Types of Personal Flotation Devices PFD TYPE BEST FOR TYPE II: NEAR-SHORE BUOYANT VEST Calm, inland waters where there is a good chance of rescue TYPE III: FLOTATION AID Calm, inland waters where there is a good chance of rescue TYPE IV: DEVICE All waters where help […]
Why do plasma balls make you smell?
Why do plasma balls make you smell? If a hand is placed close to the globe it produces a faint smell of ozone, as the gas is produced by high voltage interaction with atmospheric oxygen. Some globes have a control knob that varies the amount of power going to the center electrode. What happens if […]
What should I expect at a developmental assessment?
What should I expect at a developmental assessment? Your assessment will be tailored to your child’s age and suspected problem or delay. In general, you can expect that you’ll spend time answering a host of detailed questions about your child’s growth, physical movements, behavior, play, and interactions with family members and the rest of the […]