The two blocks shown oscillate on a frictionless surface with a period of 1.5s. The upper block just begins to slip when the amplitude is increased to 40 cm. What is the coefficient of static friction between the two blocks? wwwwww
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- Astronauts in space cannot weigh themselves by standing on a bathroom scale. Instead, they determine their mass by oscillating on a large spring. Suppose an astronaut attaches one end of a large spring to her belt and the other end to a hook on the wall of the space capsule. A fellow astronaut then pulls her away from the wall and releases her. The spring's length as a function of time is shown in the figure (Figure 1). Figure L (m) W 1.4 1.2- 1.0 0.8 0.6 0.4 0.2 0.0 T 3 1 of 1 -t (s) What is her mass if the spring constant is 270 N/m ? Express your answer with the appropriate units. m = 62 kg Submit Part B Correct V = What is her speed when the spring's length is 0.70 m ? Express your answer with the appropriate units. 0.81 Previous Answers Submit Provido Foodbook ΠΑ m sec Previous Answers Request Answer ?In the figure, two blocks (m-1.80 kg and M-9.50 kg) and a spring (k-250 N/m) are arranged on a horizontal frictionless surface. The coefficient of static friction between the two blocks is 0.390. What amplitude of simple harmonic motion of the spring-blocks system puts the smaller block on the verge of slipping over the larger block? Number Units MA harmonic oscillator has angular frequency w and amplitude A. Assume that the elastic potential energy of the oscillator is zero at x = 0. At an instant when the displacement is equal to A/5, what fraction of the total energy of the oscillator is kinetic? Give the final answer to 2 decimal places.