An occluded front can occur when
A) two different air masses are unable to overtake one another.
B) a warm front and a cold front merge.
C) warm air moves into a cold air mass.
D) a cold air mass overtakes a warm air mass.
Answer: B
You might also like to view...
Precession of the rotation axis of Earth takes ____ to complete a cycle
a. 24 hours b. one year c. 260 years d. 26,000 years e. 260,000 years
Thin Lenses: Starting from very far away, an object is moved closer and closer to a diverging lens, eventually reaching the lens. What happens to its image formed by that lens? (There could be more than one correct choice.)
A. The image gets closer and closer to the lens. B. The image gets farther and farther from the lens. C. The image always remains virtual. D. The image eventually changes from real to virtual. E. The image keeps getting larger and larger.
According to the law of reflection, the incident light ray, the reflected light ray, and the normal between them
A) lie in the same plane. B) may or may not lie in the same plane. C) lie in planes that are perpendicular to one another.
The half-life of a muon is 2.2 ?s. How fast is it moving relative to an observer who says its half-life is 4.4 ?s?
A. 0.87c B. 0.75c C. 0.97c D. 0.72c E. 0.50c