The period of a sound wave is 7.00 ms. Calculate the frequency f of the wave. Calculate the angular frequency a) of the wave. A guitar string has a mass per unit length of 2.35 g/rn. If the string is vibrating between points that are 60.0 cm apart, determine the tension F when the string is designed to F = N play a note of 440 Hz (A4). The potential energy of an object attached to a spring is 2.60 J at a location where the kinetic energy is 1.70 J. If the amplitude A of the simple harmonic motion is 21.0 cm, calculate the spring constant k and the magnitude of the largest force Fsprjngmax that the object experiences. Geoff counts the number of oscillations of a simple pendulum at a location where the acceleration due to gravity is 9.80 [11st and nds that it takes 8.85 s for 12.0 complete cycles. Calculate the length L of the pendulum. A pendulum made of a uniform rod with a length of 70.0 cm is set into simple harmonic motion about one end on Earth's surface. Calculate the period T of its motion. T: S . A string that has a mass of 2.2 g and a length of 4.0 m is pulled taut with a tension of 68 N. Calculate the speed up of transverse waves on the string