*21. ssm mmh A spring stretches by 0.018 m when a 2.8-kg object is sus- pended from its end. How much mass should be attached to this spring so that its frequency of vibration is f = 3.0 Hz?

Velocity and Acceleration of Simple Pendulum. L= 1m,T0 = 0, θ = 0, θ’ = 10deg/s, θ’’ = 2deg/s*s. Tf = 1sec, θ = 45 deg, θ’ = 5deg/s, θ’’ = 1 deg/s*s a.Find the position at T0 and Tf

Given DFQ select statememts that are not true

A 250-g object connected to a light spring with a spring constant of 1.00 N/m sits on a frictionless horizontal table. Suddenly, the object is knocked by a force causing it to move towards right and then vibrate back and forth with an amplitude of 10.0 cm as shown in the drawing. In which positions does the oscillating mass possess maximum kinetic energy? wwwwww ww A 711 ☐ ☐ 1-3T/4 6 t-3T/4 -A 8 Position 2 Position 6. Position 5. 1-7/2 t-T/4 3 X 0 +A Position 3. 1. Maximum kinetic energy position Position 8. 2. No, not this position. Position 9. Position 4 Position 1 Position 7.