Answer:
B. location A and D have the fastest net wind speed
Step-by-step explanation:
Here is the complete question
The satellite image (see the image below) shows Hurricane Sandy just before it made landfall along the New Jersey coastline at about 8 pm on October 29, 2012. As the tropical storm moved toward the coast, it had sustained wind speeds of between 80 and 90 mph circulating around the
storm. These highest sustained wind speeds are typically found within the eye wall – the portion of a hurricane with very strong winds and
intense precipitation surrounding the eye – and the winds generally decrease away from the eye wall. In addition, the whole tropical storm
was moving forward toward the northwest at speeds of over 20 mph.
To determine the net wind speed for a location within a hurricane, a few things have to be considered:
- The direction from which the winds are circulating around the hurricane.
- The forward motion of the storm (e.g., are the winds circulating around the hurricane in the same or opposite direction from the forward motion of the storm).
- Wind speeds are affected by the roughness of the surface over which the winds blow. Winds speed is more sustained on water than on land.
If the forward motion is in the same direction as the winds circulating around the hurricane, the net wind speed would be the sustained
wind speed plus the forward motion; if the forward motion is in the opposite direction from the winds circulating around the hurricane, the
net wind speed would be the sustained wind speed minus the forward motion.
Assuming idealized sustained wind speeds around the hurricane, determine which of these statements is true.
Hint 1. Direction and forward motion of the hurricane compared to the direction of locations A, B, C, and D
The hurricane is moving from the northeast with a forward motion to the northwest. Both locations A and D are moving in the same direction with the same forward motion direction. On the other hand, locations B and C are in the opposite direction of the hurricane's forward motion.
Hint 2. Surface types and friction
A relatively smooth surface, such as the ocean, would not reduce wind speed as much as a relatively rough surface, such as land.
Statements
A. Locations B and C have the fastest net wind speed.
B. Locations A and D have the fastest net wind speed.
C. All locations A, B, C, and D have the same wind speed.
D. Net wind speed at location C is stronger than that of location D
the right answer is B