I think the answer is proton
Answer:
198.2m/s
Explanation:
Speed of a wave(v) is the product of the frequency of the wave (f) and its wavelength(¶).
Mathematically, v = f/¶
Given frequency of the middle C = 261.63Hz
Wavelength = 131.87cm
Converting this to meters we have;
131.87/100 = 1.32m
Speed of the sound = 261.63/1.32
Speed of the sound = 198.20m/s
Therefore the speed of sound for middle C is 198.2m/s
I think the answer is 8 it may be right I hope this helps
Hello
The kinetic energy K of a moving object is:

where m is the mass and v the velocity of the object.
Using this formula, we can calculate v for this problem:
Answer:
metal B
temperature flow from high region to low . metal B has more temperature than others