(Solved): O 0.4 m/s^2 A horizontal oscillator needs 10 seconds to accomplish 20 oscillations. The angular fre ...

O 0.4 m/s^2 A horizontal oscillator needs 10 seconds to accomplish 20 oscillations. The angular frequency of this oscillator is equal to: On rad/s O 0.5m rad/s O41 rad/s O2n rad/s 6ft rad/s *7 points * An object is attached to a spring and oscillates on a frictionless horizontal surface with an amplitude of 25 cm. The object completes 5 oscillations in 30 seconds. The maximum acceleration of the object is given by: O 0.36 m/s^2 0.22 m/s^2 O 0.27 m/s^2 O 0.16 m/s^2 O 0.4 m/s^2 7 points An object of mass m placed at a height h from the ground has a gravitational potential energy PE_1. If the mass of the object is doubled and the height is doubled, then the new gravitational potential energy PE_2 is equal(in terms of PE_1) to: O4PE_1 8PE_1 PE 1 2PE_1 6PE_1