If the sea level rises by 20 cm from west to east , across the Red sea, a distance of 250 km at 20 N, what is the average speed and direction of the current
To determine the average speed and direction of the current, we need to calculate the speed of the current and the direction it flows in.
First, we need to convert the distance from kilometers to meters, as the unit of speed is usually meters per second. We can multiply the distance of 250 km by 1000 to convert it to meters:
Distance = 250 km * 1000 m/km = 250,000 m
Now, we can calculate the speed of the current. To do this, we divide the change in sea level (20 cm) by the distance traveled (250,000 m):
Speed = Change in Sea Level / Distance Travelled
= 20 cm / 250,000 m
However, we need to convert the change in sea level from centimeters to meters to ensure consistent units:
Change in Sea Level = 20 cm * 0.01 m/cm = 0.2 m
Now we can substitute the values:
Speed = 0.2 m / 250,000 m
Calculating this, we find that the speed of the current is approximately 0.0000008 m/s.
Next, let's determine the direction of the current. The given information states that the sea level rises from west to east across the Red Sea at 20 N. Therefore, the current flows from west to east.
Finally, combining the speed and direction, we can say the average speed of the current is 0.0000008 m/s flowing from west to east.