1.35 15 March 2012 10:26
· 1.35 use the relationship between orbital speed, orbital radius and time period: orbital speed = 2×Π×orbital radius time period v = 2×Π×r T v = 2×Π×r T v = orbital speed (m/s or km/hr) r = orbital radius (m or km) T = orbital period (s or hr) 1.35 Plenary Question 15 March 2012 10:29 Pearson, p.56, Q3+4 [cid:image001.jpg@01CD1270.0051A440] [cid:image002.jpg@01CD1270.0051A440]
· You also need to know that the radius of the Earth's orbit around the sun is 150,000,000km 1.35 Plenary Answers 15 March 2012 10:30 Pearson Answers, p.56, Q3+4 [cid:image003.png@01CD1270.0051A440] [cid:image004.png@01CD1270.0051A440] [cid:image005.png@01CD1270.0051A440] [cid:image006.jpg@01CD1270.0051A440]
· 1.35 use the relationship between orbital speed, orbital radius and time period: orbital speed = 2×Π×orbital radius time period v = 2×Π×r T v = 2×Π×r T v = orbital speed (m/s or km/hr) r = orbital radius (m or km) T = orbital period (s or hr) 1.35 Plenary Question 15 March 2012 10:29 Pearson, p.56, Q3+4 [cid:image001.jpg@01CD1270.0051A440] [cid:image002.jpg@01CD1270.0051A440]
· You also need to know that the radius of the Earth's orbit around the sun is 150,000,000km 1.35 Plenary Answers 15 March 2012 10:30 Pearson Answers, p.56, Q3+4 [cid:image003.png@01CD1270.0051A440] [cid:image004.png@01CD1270.0051A440] [cid:image005.png@01CD1270.0051A440] [cid:image006.jpg@01CD1270.0051A440]
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