(2) Armageddon??? A group of protesters gather outside the White House, chanting
ID: 113059 • Letter: #
Question
(2) Armageddon??? A group of protesters gather outside the White House, chanting and singing songs. On CNN one of them says, "Like whoa Mister President! Our mother Earth is in horrible danger from this nasty space meteor! It's over 10 nanometers (1049 nm) in diameter and has a mass of over FIFTY THOUSAND GRAMS! This bogus thing is made of the same material as the Meteor Crater in Arizona, and it's totally gonna get within a thousandth of an AU to our sacred planet! If this destroys the Earth, that would have a majorly bad effect on the rain forest! Mister President, you gotta give us, like 150 billion dollars or so, and create like a new government agency to save us all! Anything else would be bad karma! e Advisor, and asks The President turns to you, his Scienc (2 pts.) (a) "How big is this object in everyday terms? " (Give an example of an everyday object that has this size. Give an example of an everyday object that has this mass.) (2 pts.) (b) "How close will it get?" (1 pt.) (c) "If this object hit the Earth and survived the atmosphere intact, how big of a crater would it make" (1 pt.) (d) "Should we worry and/or do anything?" ExplainExplanation / Answer
Answer:
(a) 109nm is 1m and fifty thousand gram is 50kg
Tire of a larger truck can be an example of an every day object with diameter around 1m and weight nearly 50kg.
(b)1 AU is approx 150000000km which means 1000th of AU is approx 150000km earths diameter is roughly 13000km so the meteor is going to be far away from earth's surface.
(c) Astronomical objects of size around 1 m are known as meteor and usualy objects of such size couldnt reach earth only some fragments of meteor reaches earth. So it will not make any carter.
(d) We are not suppose to get worried as the object doesnt come much closer to earth and by any chance if it enters the earths atmosphere it cant do much damage beside injuring some people.
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