Figure 17-1 shows a wave movement during 1 second. what is the frequency of this wave?

a. 2 hertz
b. 2 meters/second
c. 0.5 second
d. 1 hertz

when heated, the valance electrons increased their speed and transferred the heat from electron to electron.   i just took the test.

first thing first of the answer is with technology. second thing second thing is that the big bang theory did not happened u see they say it did but what they dont realize is that like dinasures are still a round they might deny it but they and look at these 12 foot human skelteons they find lets see didnt the bible say something about giants. hope this peace.