A 240 g load attached to a horizontal spring moves in simple harmonic motion with a...

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A 240 g load attached to a horizontal spring moves in simple harmonic motion with a period of 0.450 s. The total mechanical energy of the spring-load system is 3.00 J. (a) What is the spring constant (in N/m)? N/m (b) What is the amplitude (in m) of the motion? m (c) What If? What is the percentage change in amplitude of motion if the total energy of the system is increased to 4.00 J? % change = % A 240 g load attached to a horizontal spring moves in simple harmonic motion with a period of 0.450 s. The total mechanical energy of the spring-load system is 3.00 J. (a) What is the spring constant (in N/m)? N/m (b) What is the amplitude (in m) of the motion? m (c) What If? What is the percentage change in amplitude of motion if the total energy of the system is increased to 4.00 J? % change = %