A bat moving with a speed of 2.75 m/s and emitting sound of 38.0 kHz approaches a moth at rest on a tree trunk. Part A What frequency is heard by the moth

15. one purpose of the tread pattern on a tire is to a reduce tire wear. b. reduce traction c. allow water to flow away from the tire. d. look impressive.

This is for my 8th grade science class, i really don’t understand. can someone me? , lol.

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