Galileo taught us that if you roll a ball along a level surface it will
A) soon slow down due to its natural place.
B) keep rolling if friction is absent.
C) roll as long as its inertia nudges it along.
D) soon roll in the opposite direction.
Answer: B
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A. Time like B. Light like C. Space like
Which method of extrasolar planet detection is able to measure the compositions of extrasolar planet atmopsheres?
A) gravitational lensing B) Doppler technique C) transit technique D) astrometric technique
Right ascension in the sky is very similar to latitude on the Earth
Indicate whether the statement is true or false
Rotational Kinetic Energy: A uniform ball is released from rest on a no-slip surface, as shown in the figure. After reaching its lowest point, the ball begins to rise again, this time on a frictionless surface. When the ball reaches its maximum height on the frictionless surface, it is
A. higher than when it was released. B. lower than when it was released. C. at the same height from which it was released. D. It is impossible to tell without knowing the mass of the ball. E. It is impossible to tell without knowing the radius of the ball.