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Q1. Vector is along a measured trail and is 1310 m in a direction 27.0 ° north of east. Vector is not along a measured trail, but the hiker uses a compass and knows that the direction is 19.0 ° east of south. Likewise, the direction of vector is 29.0 ° north of west. The hiker ends up back where she started, so the resultant displacement is zero, or + + = 0. Determine the magnitudes of (a) vector and (b) vector.

Q2. An object of mass m is attached to a horizontal spring, stretched to a displacement A from equilibrium and released, undergoing harmonic oscillations on a frictionless surface with period T0. The experiment is then repeated with a mass of 4m. The subsequent total mechanical energy of the object with mass 4m is when compared to the unique total mechanical energy?

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