What is the size of the largest asteroid?
A) 1 km
B) 10 km
C) 100 km
D) 1,000 km
E) 10,000 km
D
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You throw a baseball horizontally, and Jill catches it. Neglect air resistance. The energy transformation that occurs during the throw [while the ball is in your hand] is
A) thermal E ? kinetic E. B) chemical E ? gravitational E. C) kinetic E ? chemical E. D) kinetic E ? thermal E. E) chemical E ? kinetic E.
Water flows in the horizontal pipe shown in Fig. 13-6. At A the diameter is 5.00 cm and at B the diameter is 4.00 cm
The fluid in the manometer is mercury, which has a density of 13,600 kg/m3. The manometer reading h is 4.40 cm. What volume of water is flowing through the pipe per second? A) 0.0206 m3/s B) 0.0426 m3/s C) 0.00560 m3/s D) 0.372 m3/s E) 0.186 m3/s
Which of the following materials has the highest dielectric constant?
a. air b. Mylar c. paper d. Pyrex glass e. water
The ____ depend(s) on the assumption that the mass of a galaxy or galactic cluster is large enough to keep moving matter bound to the main structure
a. rotation curve method b. velocity dispersion and cluster methods c. Shapley-Curtis and Hubble methods d. recessional velocity method e. tangential velocity method