In 6 seconds , a total of 3 waves crash into a cliff. The distance between 2 adjacent waves crests on the water is 8 meters. The frequency of the waves is 0.5 Hz (true or false ?)

The image shows ekgs of a person with normal heart waves and of a person having tachycardia. based on this image, what kind of condition is tachycardia? a. the heart beats abnormally fast. b. the heart beats abnormally slow. c. the right atrium of the heart stops working. d. the left ventricle pumps less blood to the aorta.

Analyze how the water cycle affects a food web. now list 3 examples for each below using complete sentences, on how too much water would affect the same web? how about to little water?

What does the number 18.9984 represent in the image?