# physic

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A spring (80 {\rm N/m}) has an equilibrium length of 1.00 {\rm m}. The spring is compressed to a length of 0.50 {\rm m} and a mass of 2.1 {\rm kg} is placed at its free end on a frictionless slope which makes an angle of 41 ^\circ with respect to the horizontal. The spring is then released

• physic -

(1) I do not understand the meaning of your
{\r and ^\circ symbols.
(3) The subject is physics, not physic
(4) Use conservation of energy to solve the problem, if it is how high the mass goes up the slope.

• physic -

degrees

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