The Manicouagan reservoir near Quebec is an example of
A) a volcanic event.
B) Earth's interaction with a comet's dust tail.
C) cometary debris.
D) a micrometeorite impact.
E) a large meteorite impact.
E
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Solenoid: An ideal solenoid with 400 turns has a radius of 0.040 m and is 40 cm long. If this solenoid carries a current of 12 A, what is the magnitude of the magnetic field at the center of the solenoid? (?0 = 4? × 10-7 T ? m/A)
A. 16 mT B. 4.9 mT C. 15 mT D. 6.0 mT E. 9.0 mT
Analyze these generalizations about the eight planets in our solar system. Determine if they most likely apply to planets closer or farther away from the sun.
An electron which moves with a speed of 7.5 × 10^3 m/s parallel to a uniform magnetic field of 0.40 T experiences a force of what magnitude? (e = 1.6 × 10^-19 C)
a. 1.9 × 10^-15 N c. 2.2 × 10^-24 N b. zero d. 4.8 × 10^-14 N
A negatively charged rubber rod is brought near the knob of a positively charged electroscope. The result is that:
A) electroscope leaves will move farther apart B) the rod will lose its charge C) electroscope leaves will tend to collapse D) electroscope will become discharged E) nothing noticeable will happen