Two identical springs are attached to two identical masses. Both are resting on a frictionless horizontal surface. One of the springs is displaced a distance d from its equilibrium position, while the other is displaced a distance 2d
If both masses are released at the same instant,
which of the springs, A or B, returns to its
unstretched length first?
1.Spring A.
2.Spring B.
3.It's a tie.
4.Not enough information.
3
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Which of the following statements about various stages of core nuclear fusion (hydrogen, helium, carbon, and so on) in a high-mass star is not true?
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