A mass m at the end of a spring oscillates with a frequency of 0.89 Hz . When an additional 800 g mass is added to m, the frequency is 0.55 Hz. Part A What is the value of m? Express your answer to two significant figures and include the appropriate units.

A 0.454-kg block is attached to a horizontal spring that is at its equilibrium length, and whose force constant is 24.0 N/m. The block rests on a frictionless surface. A 5.20×10-2-kg wad of putty is thrown horizontally at the block, hitting it with a speed of 8.96 m/s and sticking. Part A How far does the putty-block system compress the spring? xmax Templates Symbols undo redo reset keyboard shortcuts help cm

A small earthquake starts a lamppost vibrating back and forth. The amplitude of the vibration of the top of the lamppost is 7.0 cm at the moment the quake stops, and 7.2 s later it is 1.6 cm. Part A What is the time constant for the damping of the oscillation? Express your answer with the appropriate units. HÅ T = Submit Request Answer Part B Value A= What was the amplitude of the oscillation 3.6 s after the quake stopped? Express your answer with the appropriate units. Submit HÅ Value Units Request Answer ? Units ?

A block with a mass m = 2.5 kg is pushed into an ideal spring whose spring constant is k = 4520 N/m. The spring is compressed x = 0.066 m and released. After losing contact with the spring, the block slides a distance of d = 2.25 m across the floor before coming to rest. a. Write an expression for the coefficient of kinetic friction between the block and the floor using the symbols given in the problem statement and g (the acceleration due to gravity). (Do not neglect the work done by friction while the block is still in contact with the spring.)

A simple pendulum of length 2.3 m makes 4.0 complete swings in 37.0 s. Part A What is the acceleration of gravity at the location of the pendulum? Express your answer using two significant figures. Π| ΑΣΦ g= Submit Provide Feedback Request Answer ? m/s²

A 1100-kg car moving on a horizontal surface has speed v = 60 km/h when it strikes a horizontal coiled spring and is brought to rest in a distance of 2.6 m. Part A What is the spring stiffness constant of the spring? Express your answer to two significant figures and include the appropriate units. k= Value Submit Ċ Units 1 ? Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining

Part A: The position of a 40 gg oscillating mass is given by x(t)=(2.0cm)cos(10t)=(2.0cm)cos⁡(10t), where t is in seconds. Determine the velocity at t=0.40s=0.40s. Express your answer in meters per second to two significant figures. Part B: Assume that the oscillating mass described in Part A is attached to a spring. What would the spring constant k of this spring be? Express your answer in newtons per meter to two significant figures.   Part C: What is the total energy E of the mass described in the previous parts? Express your answer in joules to two significant figures.

Parts A-C

On a frictionless, horizontal air track, a glider oscillates at the end of an ideal spring of force constant 2.30 N/cm. The graph in the figure (Figure 1) shows the acceleration of the glider as a function of time. Part A Find the mass of the glider. Express your answer with the appropriate units. For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of Angular frequency, frequency, and period in shm. Value Units m = Part B Find the maximum displacement of the glider from the equilibrium point. Figure Express your answer with the appropriate units. HÀ ? ar (m/s³) A = Value Units 12.0 6.0 t (s) 0/10 0.20 030 0.40 -6.0 -12.0 Part C Find the maximum force the spring exerts on the glider. Express your answer with the appropriate units.

Part A A small fly of mass 0.25 g is caught in a spider's web. The web oscillates predominantly with a frequency of 3.0 Hz . What is the value of the effective spring stiffness constant k for the web? Express your answer to two significant figures and include the appropriate units. HẢ 3) ? k = Value Units Submit Request Answer Part B At what frequency would you expect the web to oscillate if an insect of mass 0.50 g were trapped? Express your answer to two significant figures and include the appropriate units. 미 f2 = Value Units Submit Request Answer