13. A clothesline is stretched 9 m between two trees. Clothes hang on the line as shown in the diagram below. When a particular standing wave is produced in the line by shaking the line, the clothes remain stationary.
+
9 m
3 m
3 m
3 m
a) What is the term for the positions occupied by the clothes?

Oxygen and hydrogen gas are at the same temperature t.what is the ratio of kinetic energies of oxygen molecule and hydrogen molecule if oxygen is 16 times heavier than hydrogen.

4. if you were an astronaut on the moon, what would you experience? what would you see from your perspective?

You want to lose weight and have been trying to decide which type of fad diet is best for you. you ask your doctor, who responds that a. fad diets are a temporary fix but generally don't have any side effects b. fad diets can be used several times a year to maintain a healthy weight c. fad diets can be risky for your health and, in the long run, do not work d. fad diets should never be used one right after the other; there should be a break between them select the best answer from the choices provided. a b c d