2 a) Which of the following statements is true? i) Sound is produced in a vibrating environment. ii) Sound can easily propagate in a vacuum. iii) You can talk to your friend on the Moon. iv) Sound is propagated in the air by successive compressions and thinning of the air. V) Too much noise can damage the ears. b) For any statement that is not correct, say what is wrong. Rewrite the statement correctly. 3 Native Americans could hear horses approaching by bringing their ears to the ground. Explain why?

Select the correct answer. anna will wear a black dress when she attends het cousin's wedding. which color(s) does the dress absorb? a. all colors b. no colors c. red and green d. white

Pls pls pls pls ! describe, in your own words, how you found the epicenter of the earthquake.

Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.