21st Century Astronomy
6th Edition
ISBN: 9780393428063
Author: Kay
Publisher: NORTON
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Chapter 9, Problem 40QP
(a)
To determine
Compare the kinetic energy of air on Earth and Venus.
(b)
To determine
Compare the kinetic energy value of air on Earth and Mars.
(c)
To determine
Reason why wind erosion on Earth is not apparent.
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Students have asked these similar questions
During the extinction of the dinosaurs, a meteor with a mass of about 1.4
x10^8 kg hit the ground at a speed of 12km/s. How much energy did the
meteor deliver to the ground? (round your answer to 3 significant figures)
A. 2.02 x 10^10 Joules
B. 1.01 X 10^10 Joules
C. 1.01 X 10^16 Joules
D. 2.02 x 10^16 Joules
Instruction: Read and understand this lesson. Write your answer in a long bond paper/yellow
раper.
Problem Solving:
A. Gravitational Potential Energy
1) Climbing a vertical rope is difficult. You have to lift your full body weight with your arms.
If your mass is 60 kg and you climb 2.0 m, by how much do you increase your
gravitational potential energy?
2) Ten days after it was launched toward Mars in December 1998, the Mars Climote
Orbiter spacecraft (mass 629 kg) was 2.87 x 10 km from the earth and traveling at
1.20 x 10 km/h relative to the earth. At this time, what were:
a) The spacecraft's kinetic energy relative to the earth and
b) The potential energy of the earth-spacecraft system?
Q1.a).Explain briefly what do you understand about fossil fuelsb). write in your own words on what are the difficulties that will arise with the disposal of nuclear waste.
Chapter 9 Solutions
21st Century Astronomy
Ch. 9.1 - Prob. 9.1CYUCh. 9.2 - Prob. 9.2CYUCh. 9.3 - Prob. 9.3ACYUCh. 9.3 - Prob. 9.3BCYUCh. 9.4 - Prob. 9.4CYUCh. 9.5 - Prob. 9.5CYUCh. 9 - Prob. 1QPCh. 9 - Prob. 2QPCh. 9 - Prob. 3QPCh. 9 - Prob. 4QP
Ch. 9 - Prob. 5QPCh. 9 - Prob. 6QPCh. 9 - Prob. 7QPCh. 9 - Prob. 8QPCh. 9 - Prob. 9QPCh. 9 - Prob. 10QPCh. 9 - Prob. 11QPCh. 9 - Prob. 12QPCh. 9 - Prob. 13QPCh. 9 - Prob. 14QPCh. 9 - Prob. 15QPCh. 9 - Prob. 16QPCh. 9 - Prob. 17QPCh. 9 - Prob. 18QPCh. 9 - Prob. 19QPCh. 9 - Prob. 20QPCh. 9 - Prob. 21QPCh. 9 - Prob. 22QPCh. 9 - Prob. 23QPCh. 9 - Prob. 24QPCh. 9 - Prob. 25QPCh. 9 - Prob. 26QPCh. 9 - Prob. 27QPCh. 9 - Prob. 28QPCh. 9 - Prob. 29QPCh. 9 - Prob. 30QPCh. 9 - Prob. 31QPCh. 9 - Prob. 32QPCh. 9 - Prob. 33QPCh. 9 - Prob. 34QPCh. 9 - Prob. 35QPCh. 9 - Prob. 36QPCh. 9 - Prob. 37QPCh. 9 - Prob. 38QPCh. 9 - Prob. 39QPCh. 9 - Prob. 40QPCh. 9 - Prob. 41QPCh. 9 - Prob. 42QPCh. 9 - Prob. 43QPCh. 9 - Prob. 44QPCh. 9 - Prob. 45QP
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