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Author Question: If we allow for a simple runaway greenhouse effect, the inner boundary of the Sun's habitable zone ... (Read 92 times)

gonzo233

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on: Jul 27, 2018
If we allow for a simple runaway greenhouse effect, the inner boundary of the Sun's habitable zone would be
 
  A) roughly halfway between the orbits of Venus and Mercury
  B) just outside the orbit of the planet Mercury
  C) roughly half way between the orbits of the Earth and Venus
  D) just inside the orbit of the Earth

Question 2

A mass which weighs 19.6 Newtons on Earth is 2.3 meters away from a 2.00 kg mass.
 
  (a) Determine their mutual gravitational attraction to each other.
  (b) How much work would have to be done to put a very large distance between the two masses?


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fur

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Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

(a) 5.0  10-11 N
(b) 12.  10-11 Joules


gonzo233

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Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

daiying98

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Reply 3 on: Yesterday
Wow, this really help

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