Physics P7 Revision Hope you like!! 2.5 / 5 based on 4 ratings ? PhysicsAstronomyGCSEOCR Created by: tonyCreated on: 26-05-12 20:52 How long is a sidereal day? 23 hours 56 minutes 1 of 3 How long is a solar day 24 hours 2 of 3 The retrograde motion of Mars is caused by...? The Eartg overtaking Mars 'on the inside track' 3 of 3
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