What is the impact of food chain in our daily life? Food chains are important because they show the intricate relationships in ecosystems. They can reveal how each organism depends on someone else for survival. Food chains also display what happens when a problem occurs and a producer or consumer is lost. Entire communities can […]
What are three methods used to find exoplanets?
What are three methods used to find exoplanets? Bottom line: The most popular methods of discovering exoplanets are the transit method and the wobble method, also know as radial velocity. A few exoplanets have been discovered by direct imaging and microlensing. How are exoplanets named? The lowercase letter “b” stands for the planet, in the […]
What is a very big number?
What animals were alive during the Carboniferous Period?
What animals were alive during the Carboniferous Period? Land animals included primitive amphibians, reptiles (which first appeared in the Upper Carboniferous), spiders, millipedes, land snails, scorpions, enormous dragonflies, and more than 800 kinds of cockroaches. Could humans survive in the Carboniferous period? The earliest period in which humans could live as a land-based rather than […]
How much energy is in the atmosphere?
How much energy is in the atmosphere? On average, 340 watts per square meter of solar energy arrives at the top of the atmosphere. Earth returns an equal amount of energy back to space by reflecting some incoming light and by radiating heat (thermal infrared energy). How does energy transfer in a TV? A television […]
Are tube radios dangerous?
Are tube radios dangerous? AFAIK, these are all voltage regulator tubes and have the standard radiation symbol printed on them (unless it has worn off). 3) CRTs. These are dangerous because of their size and that they contain a vacuum. They can implode (not explode) violently if broken. Are old tube radios safe? An antique […]
Has there ever been a death at Cedar Point?
Has there ever been a death at Cedar Point? On August 13, 2015, a 45-year-old man was killed by the roller coaster after going into the ride’s restricted area to retrieve a dropped cell phone. He was struck in the back of the head by a passing train. Park emergency crews attempted to revive him, […]
Do dense objects sink?
What is the full form of ABC strategy?
What is the full form of ABC strategy? Abstinence, be faithful, use a condom, also known as the ABC strategy or abstinence-plus sex education, also known as abstinence-based sex education, is a sex education policy based on a combination of “risk avoidance” and harm reduction which modifies the approach of abstinence-only sex education by including […]
What is the formula for free fall acceleration?
What is the formula for free fall acceleration? Free fall means that an object is falling freely with no forces acting upon it except gravity, a defined constant, g = -9.8 m/s2. The distance the object falls, or height, h, is 1/2 gravity x the square of the time falling. What is the acceleration of […]