Igneous rocks are classified according to their silica content, or color, and their ______________
Fill in the blank(s) with correct word
texture, or grain size
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The supernova generated by the explosion of a high mass star fades slowly because of energy generated by ____
a. magnetic fields around the neutron star b. disintegration of iron in the core of the star c. radioactive decay of nickel formed in the expanding shell of the supernova d. fusion of the remaining hydrogen in the star e. matter-antimatter disintegration around the collapsed core
Work-Energy Theorem: A 1000-kg car experiences a net force of 9500 N while slowing down from 30 m/s to 15.9 m/s. How far does it travel while slowing down?
A. 34 m B. 31 m C. 37 m D. 41 m
A projectile is launched from ground level at 15° above the horizontal and lands downrange. What other projection angle for the same speed would produce the same down-range distance?
A) 30° B) 45° C) 50° D) 75° E) 90°
A charged particle of mass 0.0020 kg is subjected to a 6.0 T magnetic field which acts at a right angle to its motion. If the particle moves in a circle of radius 0.20 mat a speed of 5.0 m/s, what is the magnitude of the charge on the particle?
A) 0.0083 C B) 120 C C) 0.00040 C D) 2500 C