A mass is suspended vertically from an ideal spring. When the action in this problem begins, the mass has been lifted upwards so that the spring is much less extended than when the mass is simply hanging, at rest, from the end of the spring. The mass is then released; it falls and stretches the spring and ends up vibrating up and down about the equilibrium position (the position where the total force on the mass is zero).A) The acceleration of the mass (as well as the net force on the mass) is greatest in magnitude and is directed upward when the spring is least extended (i. e. the mass is at the upper endpoint of the motion).the spring is most extended (i. e. the mass is at the lower endpoint of the motion). The mass is somewhere between the equilibrium position and the lower endpoint of the motion. The mass is passing the equilibrium position. B) The speed of the mass is greatest when the spring is most extended (i. e. the mass is at the lower endpoint of the motion).the mass is passing the equilibrium position. The mass is somewhere between the equilibrium position and the lower endpoint of the motion. The spring is least extended (i. e. the mass is at the upper endpoint of the motion).C) The acceleration of the mass is zero when the mass is passing the equilibrium position. the spring is least extended (i. e. the mass is at the upper endpoint of the motion). The mass is somewhere between the equilibrium position and the lower endpoint of the motion. The spring is most extended (i. e. the mass is at the lower endpoint of the motion).D) The acceleration of the mass (as well as the net force on the mass) is greatest in magnitude and directed downward when the mass is passing the equilibrium position. the spring is most extended (i. e. the mass is at the lower endpoint of the motion). The spring is least extended (i. e. the mass is at the upper endpoint of the motion). The mass is somewhere between the equilibrium position and the lower endpoint of the motion.
Answers: 3
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If 2 moles of co_2 at 2l and 500k are expanded reversibly to 20l, more work can be obtained from an adiabatic process than from an isothermal process. is the above statement true or false?
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Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. the scale reads 830 n for the first 2.4 s after the elevator starts moving, then 930 n for the next 2.4 s. part a what is the elevator's speed 4.8 s after starting? express your answer with the appropriate units.
Answers: 2
A mass is suspended vertically from an ideal spring. When the action in this problem begins, the mas...
Mathematics, 07.04.2020 04:48
Mathematics, 07.04.2020 04:48