Answer:
Frequency doubles.
Explanation:
Frequency doubles because Wavelength and Frequency are inversely proportional. That means if one decreases the other one increases. So, if wavelength is half, frequency is the opposite, doubles.
Answer:lefmprkfniou4gjkfjrnwerkjdkcheouvwe
Explanation:fefefefrgff
The answer is true. The blowing fan force the hot air to go through the process of convection .
Answer:
All of the arrows pointing up that have a red box NOT the arrow pointing down with a red box. (if the blue squigglies on the water are arrows then they count too, the picture is not too clear)
Explanation:
