Illustrate what is the magnitude of object acceleration

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Q.  A 220 air-track glider is attached to a spring. The glider is pushed in 8.2 and released. A student with a stopwatch finds that 10 oscillations take 16.0. What is the spring constant?

Q. An object is on a frictionless inclined plane. The plane is inclined at an angle of 24.9 degrees with the horizontal. Using the accerlation due gravity from your reference table. What is the magnitude of object's acceleration?

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