The oldest easily identifiable fossils appear in sedimentary rocks that formed 3.4 billion years ago during the ____________________ period
Fill in the blank(s) with correct word
precambrian
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Power: A series ac circuit has a peak current of 1.0 A with a frequency of 7 kHz. If the resistance of the circuit is 55 k?, the capacitance of the circuit is 20 ?F, and the inductance of the circuit is 26 H, determine the average power of the circuit over one cycle.
A. 28,000 W B. 83,000 W C. 8300 W D. 4400 W
What makes some astronomers think that Uranus was hit by a large body early in its history?
A. It has no moons. B. It goes around the Sun in a direction opposite to the other planets. C. Its composition is so different from those of Neptune, Jupiter, and Saturn. D. Its rotation axis has such a large tilt with respect to its orbit. E. All of these choices are correct.
A billiard ball traveling at 3.00 m/s collides perfectly elastically with an identical billiard ball initially at rest on the level table. The initially moving billiard ball deflects 30.0° from its original direction
What is the speed of the initially stationary billiard ball after the collision? A) 2.00 m/s B) 0.866 m/s C) 1.50 m/s D) 2.59 m/s E) 0.750 m/s
The brilliancy of a gem is a function of its index of ______________
Fill in the blank(s) with correct word