Category: Physics

What is the advantage of infrared satellites over visible solar radiation satellites? A major advantage of the IR channel is that it can sense energy at night, so this imagery is available 24 hours a day. This is a disadvantage of the visible channel, which requires daylight and cannot “see” after dark. What type of […]

What is the easiest can opener? Best Overall: OXO Good Grips Smooth Edge Can Opener You can’t go wrong with the highly rated OXO Good Grips Smooth Edge Can Opener! The side-wind mechanism cuts through cans easily and doesn’t leave any sharp objects behind. It’s constructed of high-quality stainless steel that’s dishwasher safe for easy […]

How hard is a NFL hit? The punishing nature of an NFL hit is not a new invention. A helmet hit from 1930s Hall of Famer Morris “Red” Badgro would lay down quarterbacks with about 4.9 tons of force — twice the impact of a 30 mile-per-hour car crash while wearing a seat belt. Unsurprisingly, […]

What are the dimensions of wellness? Wellness encompasses 8 mutually interdependent dimensions: physical, intellectual, emotional, social, spiritual, vocational, financial, and environmental (Table 1) (1). What are the 7 Dimensions of Wellness? The Seven Dimensions of Wellness Physical. Emotional. Intellectual. Social. Spiritual. Environmental. Occupational. What are the six dimensions of wellness? The National Wellness Institute promotes […]

How do you tell if a lens is concave or convex? A concave lens is thinner in the middle and thicker at the edges. A convex lens is thicker in the middle and thinner at the edges. Used in the camera, focus sunlight, overhead projector, projector microscope, simple telescope, magnifying glasses, etc. It is also […]

What wattage is 120V 60hz? 120v/60hz means 120 volts 60 hertz frequency as opposed to Europe where they use 240 volts and 50 hertz. 14 watts is 14 watts. If you used it for an hour it would be 14 watt hours or . 014 kWh which is what you see on your power bill. […]

Did Pony Express riders carry guns? In addition to the mailbag, the Pony Express riders carried two things: a Bible, and a gun. What name was used for the locking pockets on the mochila that held the mail? The mochila was a leather piece with slits that fit over a pony express saddle. It had […]

What was the biggest volcanic eruption in history? Tambora Can a pilot depressurize the cabin? The current policy requires that the cockpit door be locked so that the hijackers have no access to the flight controls. A new method has been discussed whereby the pilots depressurize the cabin so as to eliminate the hijacking threat […]

What kind of lighting is best for living room? Lumens: Ambient lighting for a living room should be 1,500-3,000 lumens. Task lighting for reading should be a minimum of 400 lumens. How can I get more light in my living room? Here are some awesome ideas to brighten any dark bedroom, kitchen or living room. […]

What are 3 characteristics of a good diet? Balance calories with physical activity to manage weight. Consume more of certain foods and nutrients such as fruits, vegetables, whole grains, fat-free and low-fat dairy products, and seafood. Consume fewer foods with sodium (salt), saturated fats, trans fats, cholesterol, added sugars, and refined grains. What are three […]