The gravitational collapse of an interstellar cloud can be triggered by a collision with another cloud.
Answer the following statement true (T) or false (F)
True
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A hunter wishes to cross a river that is 1.5 km wide and flows with a velocity of 5.0 km/h parallel to its banks. The hunter uses a small powerboat that moves at a maximum speed of 12 km/h with respect to the water. What is the minimum time for crossing?
Galaxies come in three varieties, which are
A. old, young, and intermediate. B. Seyfert, radio, and quasar. C. spiral, elliptical, and irregular. D. barred spiral, irregular, and Seyfert.
What is the resistance of a cylindrical metal rod 1.0 cm in diameter and 45 m long, if the resistivity of the metal is 1.4 × 10-8 ? ? m?
A) 0.0063 ? B) 0.0080 ? C) 0.80 ? D) 6.3 ?
Which of the following parameters will dictate whether a particular solar eclipse appears as a total or an annular eclipse to an observer?
What will be an ideal response?