Part C The position of a 50 g oscillating mass is given by z(t) (2.0 cm)cos(10t-/4),...
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Part C The position of a 50 g oscillating mass is given by z(t) (2.0 cm)cos(10t-/4), where t is in s Notice that this expression for a(t) includes a phase constant like we found in class when we used a curve fit to our data in LoggerPro. When you do the calculations, just keep that phase constant inside the cosine function, and make sure your calculator is set to radians. If necessary, round your answers to three significant figures. What is the value for the spring constant? Notice that the mass is given in g. Express your answer with the appropriate units. Submit Previous Answers What is the phase constant? You can read it directly from the expression for z(t). Your answer will be in radians, and it will be negative. Express your answer with the appropriate units. -0.785 rad Submit Previous Answers Part E Correct What is the initial position of the mass, when t=0s? Express your answer with the appropriate units. 1.41 cm Submit Previous Answers Correct Part F What is the initial velocity, when t=0 s? When you have a phase constant for z(t), you'll get the same phase constant in the expression for v(t). You'll want to write out a general expression for v(t), and then evaluate it when t = 0 s. Express your answer with the appropriate units. Part C The position of a 50 g oscillating mass is given by z(t) (2.0 cm)cos(10t-/4), where t is in s Notice that this expression for a(t) includes a phase constant like we found in class when we used a curve fit to our data in LoggerPro. When you do the calculations, just keep that phase constant inside the cosine function, and make sure your calculator is set to radians. If necessary, round your answers to three significant figures. What is the value for the spring constant? Notice that the mass is given in g. Express your answer with the appropriate units. Submit Previous Answers What is the phase constant? You can read it directly from the expression for z(t). Your answer will be in radians, and it will be negative. Express your answer with the appropriate units. -0.785 rad Submit Previous Answers Part E Correct What is the initial position of the mass, when t=0s? Express your answer with the appropriate units. 1.41 cm Submit Previous Answers Correct Part F What is the initial velocity, when t=0 s? When you have a phase constant for z(t), you'll get the same phase constant in the expression for v(t). You'll want to write out a general expression for v(t), and then evaluate it when t = 0 s. Express your answer with the appropriate units.
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Physics for Scientists and Engineers A Strategic Approach with Modern Physics
ISBN: 978-0133942651
4th edition
Authors: Randall D. Knight
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