It is the first one. But if you have this question you are not a little boy
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.
31 (unit)
acceleration formula
net force (124)
Acceleration = -------------
mass (4)
124÷4=31
Lực hút trái đất gọi Là trọng lực
Lighting is the static electricity stored in the clouds that is disposed to the earth.
