7) A 0.62 kg mass oscillates according to the equation x=0.29sin(5.8t) where x is in meters and t is in seconds. Part D Determine the total energy. Express your answer to two significant figures and include the appropriate units. Part E Determine the kinetic energy when x is 17 cm . Express your answer to two significant figures and include the appropriate units. Part F Determine the potential energy when x is 17 cm . Express your answer to two significant figures and include the appropriate units.

A spring with spring constant 15 N/m hangs from the ceiling. A ball is attached to the spring and allowed to come to rest. It is then pulled down 9.5 cm and released. The ball makes 20 oscillations in 23 s seconds. You may want to review (Pages 403-404) Part A What is its the mass of the ball? Express your answer to two significant figures and include the appropriate units. m = Submit Part B "i Vmax= μA Submit Value Request Answer What is its maximum speed? Express your answer to two significant figures and include the appropriate units. μA Value Units Request Answer ? Units ?

A spring with a spring constant of k=157N/m is initially compressed by a block a distance d=0.21m. The block is on horizontal surface with coefficient of kinetic friction yk static friction ys and has a mass of m=6kg B)Assuming the block is released from the initial position and begins to move to the right input an expression for the sum of the force in the x- direction in the configuration.

A 0.300 kg oscillator has a speed of 90.4 cm/s when its displacement is 4.00 cm and 45.9 cm/s when its displacement is 6.50 cm. Part A What is the oscillator's maximum speed? Express your answer with the appropriate units. HẢ ? Value Units Umax = Submit Request Answer

B5

5. The image below is a graph of x(t) vs. t for an underdamped oscillator. Assuming the equation is x(t) = A e-ßt cos (w₁t - 8), a) find 8. b) find w₁. c) find B. d) find A. 2

A 330-kg wooden raft floats on a lake. When a 70-kg man stands on the raft, it sinks 3.9 cm deeper into the water. When he steps ff, the raft oscillates for a while. Part A What is the frequency of oscillation? Express your answer using two significant figures. Η ΑΣφ Hz Submit Request Answer Part B What is the total energy of oscillation (ignoring damping)?

Questions 2-5 reference the picture of mass attached to a spring shown. The left most picture gives the spring in its relaxed (equilibrium) position. The mass is lifted to point "B" and let go such that it oscillates up and down as shown in the right most position. Positions B and C are its highest and lowest points while bouncing. Point A is where the mass is traveling the fastest. Neglect air drag. 100 g B A 100 g 100 g At what point will the mass have the largest elastic (spring) potential energy? A В C All points will have the same amount of elastic potential energy. hllll

A 0.41-kg metal sphere oscillates at the end of a vertical spring. As the spring stretches from 0.12 m to 0.23 m (relative to its unstrained length), the speed of the sphere decreases from 7.0 to 4.5 m/s. What is the spring constant of the spring? Number i 306.17 Units N/n

question 23 in the image