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.
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Why is it important always to use horizontal bars in unit fractions when performing unit conversions?
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Physics, 22.06.2019 10:50
The temperature at a point (x, y) is t(x, y), measured in degrees celsius. a bug crawls so that its position after t seconds is given by x = 6 + t , y = 8 + 1 3 t, where x and y are measured in centimeters. the temperature function satisfies tx(3, 9) = 5 and ty(3, 9) = 4. how fast is the temperature rising on the bug's path after 3 seconds? (round your answer to two decimal places.)
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Physics, 22.06.2019 15:30
Two pans of a balance are 24.1 cm apart. the fulcrum of the balance has been shifted 1.33 cm away from the center by a dishonest shopkeeper. by what percentage is the true weight of the goods being marked up by the shopkeeper? assume the balance has negligible mass. answer in units of %.
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Physics, 22.06.2019 16:00
The field between two charged parallel plates is kept constant. if the two plates are brought closer together, the potential difference between the two plates either a) decrease b) does not change c) increase?
Answers: 3
A mass is suspended vertically from an ideal spring. When the action in this problem begins, the mas...
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