Answer:
B. Every point on the line is an equivalent ratio.
C. As the line goes up, the speed increases.
D. Simone can pick any ratio on the line and she will be swimming at a rate of 2 mph.
Explanation:
If the line on the graph has equivalent ratio, it shows that the Simone swim at the speed of 2 mph. If the line on the graph goes up , it means the speed of swimming increases while when the line on the graph goes down, the swimming speed decreases so maintaining the speed of 2 mph, the line have to go horizontally in straight line. If Simone can pick any ratio on the line present on the graph so she has to swimming at a rate of 2 mph.
The earth rotates on its axis
Determine what traits you get :)
Persian windmill blades were vertical, like propellers, while European ones were horizontal, like egg-beaters.
<u>Explanation:
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A windmill is a functioning engine sort of thing. This transforms energy from the wind into rotational energy. For this reason this requires vanes called sails or blades. The very first windmills featured with long vertical shafts with blades designed like rectangles who lived in ninth-century Persia.
Six to twelve sails were produced of those windmills. The sails had been coated with matting reed or fabric. They differed greatly from the European editions. In 13th century China a similar nature of vertical shaft windmill with rectangular blades was found used for irrigation. Overall around 60 AD vertical axle windmills had been found in eastern Persia. In the 1180s northwestern Europe developed horizontal axle windmills. It is the form that is often employed today.