Calculate the period related to the motion of the mass
A 0.712-kg mass attached to a vertical spring of force constant 155 N/m oscillates with a maximum speed of 0.366 m/s. Calculate the period related to the motion of the mass.
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To water the yard you use a hose with a radius of 3.5 cm. Water flows from the hose with a speed of 1.1 m/s. If you partially block the end of the hose so the effective radius is now 0.55 cm, with what speed does water spray from the hose?
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The surfaces of the lens have radii of curvature 25.5 cm (located on the object side of the lens) and 51cm (located on the side opposite to the object side of the lens). What is the index of refraction, and the magnification of the lens?
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