A spring experiences a simple harmonic movement, if it starts its movement when the spring is extended 20 cm. Calculate: a) The elastic constant...

A spring experiences a simple harmonic movement, it starts its movement the spring extended cm. Calculate:        a) The elastic constant applied N        b) If the spring weighs N, obtain its angular frequency.        c) PeriodIn a tide that presents the waves the sea, it performs a simple harmonic movement where the result obtained a superposition waves, where it states cm above its equilibrium point, leading to a number waves π / π / at a distance m the superposition was made a time sec. Calculate the resultant between the waves.In the City Florida, a space take- training will be carried out, which the intensity level at a point located at m perceived the that measured at dB. Calculate:a) The intensity the sound at that distance. Consider Io = X10 W / m2b) Power the sound source.