Can you guys please answer this multiple choice question I had difficulties with while studying

Multiple-Choice Questions 18. 0 A spring has an unstretched length of 20 cm. A 100 g mass hanging from the spring stretches it to an equilibrium length of 30 cm. a. Suppose the mass is pulled down to where the spring's length is 40 cm. When it is released, it begins to oscillate. What is the amplitude of the oscillation? A. 5.0 cm B. 10 cm C. 20 cm D. 40 cm b. For the data given above, what is the frequency of the oscillation? A. 0.10 Hz B. 0.62 Hz C. 1.6 Hz D. 10 Hz c. Suppose this experiment were done on the moon, where the freefall acceleration is approximately 1/ 6 of that on the earth. How would this change the frequency of the oscillation? A. The frequency would decrease. B. The frequency would increase. C. The frequency would stay the same. 19. .. Figure Q15.190 represents the motion of a mass on a spring. a. What is the period of this oscillation? A. 12 s B. 24 s C. 36 s D. 48 s E. 50 s Figure Q15.19 x (cm) b. What is the amplitude of the oscillation? A. 1.0 cm B. 2.5 cm C. 4.5 cm D. 5.0 cm E. 9.0 cmc. What is the position of the mass at time t = 30 s? A. -4.5 cm B. -2.5 cm C. 0.0 cm D. 4.5 cm E. 30 cm d. When is the first time the velocity of the mass is zero? A. O s B. 2 s C. 8 s D. 10 s E. 13 s e. At which of these times does the kinetic energy have its maximum value? A. O s B. 8 s C. 13 s D. 26 s F 30 s20. 0 A ball of mass m oscillates on a spring with spring constant k = 200 N/m. The ball's position is x = (0.350 m) cos (15.0t), with t measured in seconds. a. What is the amplitude of the ball's motion? A. 0.175 In B. 0.350 m C. 0.700 m D. 7.50 m E. 15.0 m b. What is the frequency of the balls motion? A. 0.35 Hz B. 2.39 Hz C. 5.44 Hz D. 6.28 Hz E. 15.0 Hz c. What is the value of the mass m? A. 0.45 kg B. 0.89 kg C. 1.54 kg D. 3.76 kg E. 6.33 kg d. What is the total mechanical energy of the oscillator? A. 1.65 J B. 3.28] C. 6.73] D. 10.1 J E. 12.2 J e. What is the ball's maximum speed? A. 0.35 m/s B. 1.76 m/s C. 2.60 m/s D. 3.88 m/s E. 5.25 m/s 21. 0 A 0.20 kg mass on a horizontal spring is pulled hack 2.0 cm and released. If, instead, a 0.40 kg mass were used in this same experiment, the total energy of the system would A. Double. B. Remain the same. C. Be half as large. 22. 0 A 0.20 kg mass on a horizontal spring is pulled back a certain distance and released. The maximum speed of the mass is measured to be 0.28 m/s. If, instead, a 0.40 kg mass were used in this same experiment, the maximum speed would be A. 0.14 m/s B. 0.20 m/s (2. 0.28 m/s D. 0.40 m/s E. 0.56 m/s 23. 0 A heavy brass ball is used to make a pendulum with a period of 5.5 3. How long is the cable that connects the pendulum ball to the ceiling? A. 4.7 m B. 6.2 In C. 7.5 In D. 8.7 In