What is the period (in s) of a simple pendulum of length 0.38 m and mass 0.48 kg near the surface of a planet where the gravitational acceleration is 4.4 m/s?? Enter a number with 2 digits behind the decimal point..A mass-spring system oscillates with an amplitude of 8.3 cm. If the force constant of the spring of 367 N/m and the mass is 0.63 kg, what is the magnitude of the maximum acceleration of the mass in m/s?? Enter a number with one digit behind the decimal point