Answer to Question 1
ANSWER: In the Northern Hemisphere highs have a clockwise circulation aloft, lows have a counterclockwise circulation aloft. At the surface, the direction of the circulation is the same as aloft but the winds tend to cross the isobars toward lower pressures.
In the Southern Hemisphere highs have a counterclockwise circulation aloft, lows have a clockwise circulation aloft. At the surface, the direction of the circulation is the same as aloft but the winds tend to cross the isobars toward lower pressures.
Answer to Question 2
ANSWER: Newtons first law of motion states that an object at rest will remain at rest and an object in motion will remain in motion (and travel at a constant velocity along a straight line) as long as no force is exerted on the object. So, to start air moving, to speed it up, to slow it down, or even to change its direction requires the action of an external force. Newtons second law states that the force exerted on an object equals its mass times the acceleration produced. From this relationship we can see that, when the mass of an object is constant, the force acting on the object is directly related to the acceleration that is produced.
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A rubber mallet used to deliver a force to an object without harming the surface.
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What is the maximum velocity (in km/s) of a photoelectron emitted from a surface whose work ...