The block that displaces the greatest volume of water when submerged is a
A) 1-kg block of aluminum.
B) 1-kg block of iron.
C) 1-kg block of lead.
D) all the same
Answer: A
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If the planet Jupiter underwent gravitational collapse, its rate of rotation about its axis would
A) decrease. B) increase. C) stay the same. D) need more information
In composition and density, the asteroids most resemble:
A) comets. B) the Sun. C) jovian moons. D) pieces of terrestrial planets. E) Kuiper Belt objects like Pluto.
The two most common types of poor eyesight are the result of improper ______________
Fill in the blank(s) with correct word
A thin copper rod 1.0 m long has a mass of 0.050 kg and is in a magnetic field of 0.10 T. What minimum current in the rod is needed in order for the magnetic force to cancel the weight of the rod?
A) 1.2 A B) 2.5 A C) 4.9 A D) 7.6 A E) 9.8 A