Answer:
m = 40.8 [kg]
Explanation:
We know that weight is defined as the product of mass by gravitational acceleration in this way we have the following equation.
where:
W = weight [N] (units of Newtons)
m = mass [kg]
g = gravity acceleration = 9.8 [N/kg]
Therefore:
Answer: 41!
The frequency of the sound is 500