Question 1 (1 point) A 0.25-kg apple is gently hung from a spring that stretches 4.6 cm. The force constant of the spring is ( 1) 0.054 N/m ( 2) 53 N/m ( 3) 18 N/m ( 4) 6.1 N/m (5) 180 N/m Question 2 (1 point) A spring-powered SHM oscillator vibrates with a period of 0.29 s. If the force constant of the spring is 180 N/m, the mass used is (1) 2.4 kg ( 2) 0.38 kg ( 3) 2.6 kg (4) 1.3 kg ( 5) 0.77 kg Question 3 (1 point) Which of the following cannot be described using SHM? ( 1) a DVD spinning in a DVD Player O 2) a playground swing swinging through a small angle ( 3) a guitar string vibrating ( 4) a car shock absorber ( 5) the pendulum of a grandfather clock