Suppose you view the solar system from high above Earth's North Pole. Which of the following statements about planetary orbits will be true?
A) All the planets orbit counterclockwise around the Sun.
B) The inner planets orbit the Sun counterclockwise, whereas the outer planets orbit the Sun clockwise.
C) All the planets except Uranus orbit the Sun counterclockwise; Uranus orbits in the opposite direction.
D) The inner planets orbit the Sun clockwise, whereas the outer planets orbit the Sun counterclockwise.
A) All the planets orbit counterclockwise around the Sun.
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Which terrestrial planet has the youngest surface?
A. Earth B. Mercury C. Mars D. Venus
A 10-N block and a 1-N block lie on a horizontal frictionless table. To impart equal horizontal accelerations, we would have to push the heavier block with
A) an equal force. B) 10 times as much force. C) 10 squared or 100 times as much force. D) 1/10 as much force. E) none of the above
Might changes in the Sun affect weather or climate on Earth?
What will be an ideal response?
Car A (mass = 1000 kg) moves to the right along a level, straight road at a speed of 6.0 m/s. It collides directly with car B (mass = 200 kg) in a completely inelastic collision
What is the momentum after the collision if car B was initially at rest? A) 2.0 KN-s to the right B) 6.0 KN-s to the right C) 8.0 KN-s to the left D) 10. KN-s to the right E) zero