If a 40000-kg asteroid falls to earth from a very great distance away, how much kinetic energy will it impart to our planet? You can ignore the effects of the earth's atmosphere. Express your answer using two significant figures. ? K = J

Principles of Physics: A Calculus-Based Text
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Chapter11: Gravity, Planetary Orbits, And The Hydrogen Atom
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Problem 2OQ: The gravitational force exerted on an astronaut on the Earths surface is 650 N directed downward....
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If a 40000-kg asteroid falls to earth from a very great distance away, how much kinetic energy will it impart to our planet? You can ignore the
effects of the earth's atmosphere.
Express your answer using two significant figures.
ν ΑΣφ
?
K =
J
Submit
Previous Answers Request Answer
X Incorrect; Try Again; 4 attempts remaining
Part B
What will be its minimum speed as it strikes the earth's surface?
Express your answer using two significant figures.
?
V =
m/s
Transcribed Image Text:If a 40000-kg asteroid falls to earth from a very great distance away, how much kinetic energy will it impart to our planet? You can ignore the effects of the earth's atmosphere. Express your answer using two significant figures. ν ΑΣφ ? K = J Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining Part B What will be its minimum speed as it strikes the earth's surface? Express your answer using two significant figures. ? V = m/s
The gravitational pull of the earth on an object is inversely
proportional to the square of the distance of the object from
the center of the earth. At the earth's surface this force is
equal to the object's normal weight mg , where g=9.8
m/s“, and at large distances, the force is zero.
Transcribed Image Text:The gravitational pull of the earth on an object is inversely proportional to the square of the distance of the object from the center of the earth. At the earth's surface this force is equal to the object's normal weight mg , where g=9.8 m/s“, and at large distances, the force is zero.
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We have givenMass of asteroid (m)=40000 kg

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