No links! PLEASE HELP!!! Giving away 20 points! Which of the following is a scientific question?
A. Which rowing boat hull design will sell the best?
B. Which rowing boat hull design will create the least drag?
C. Which rowing boat hull design will meet Olympic specifications?
D. Which rowing boat hull design will feel best to row?

Waves are used in many practical applications to support work, entertainment, and health. one example is the use of ultrasound imaging to safely track the development of a growing fetus. what is a specific example of a practical application of waves in medicine, entertainment, safety, or other fields? provide a brief explanation of how the properties of waves are useful to that application.

Apebble is thrown into a calm lake, ripples are formed from the center and move outward. the water particles in the lake travel in a circular pattern that moves up and down on the surface of a lake, and the energy travels a) diagonally. b) downward. c) horizontally. d) upward.

In science and physics what is the standard unit of measure for speed?