1) A spring Is stretched the length of 5.40 m along the floor a 1.32 m long pulse travels From your hand to fix end of the spring and back to your hand in 1.96 seconds how long does it take the post to reflect from the fixed end of the spring? 2) A pulse with the speed of 5.06 m/s takes 0.890 seconds to pass a point in the spring how long is the pulse? 3. A pendulum bob suspended by 0.950 m long string. When the pendulum is pulled sideways so that the angle the string makes with the vertical is 7.5, third storing force acting on the pendulum is 4.95 Newton what is the mass of the pendulum bob? 4. A spring with a spring constant of 3.5810^3 n/m exerts a restoring force of 894 Newton 45.0 what is the position of the spring? 5. The length of an empty bottle is 1.71 m the bottle is open at one end what is the frequency of the note created by blowing air across the top of an empty bottle if the speed of sound is 328 m/s