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  46. By how much the energy stored in a Hooke's

Question :   46. By how much the energy stored in a Hooke's : 2102108

 

46. By how much is the energy stored in a Hooke's law spring increased when its stretch is increased from 8.00 cm to 16.0 cm?

A. 100%

B. 200%

C. 300 %

D. The correct answer is not given.

47. A Hooke's law spring is compressed 12.0 cm from equilibrium and the potential energy stored is 72.0 J. What is the spring constant in this case?

A. 10 000 N/m

B. 5 000 N/m

C. 1 200 N/m

D. No answer is correct.

48. A Hooke's law spring is compressed 12.0 cm from equilibrium, and the potential energy stored is 72.0 J. What compression (as measured from equilibrium) would result in 100 J being stored in this case?

A. 16.7 cm

B. 14.1 cm

C. 13.6 cm

D. No answer is correct.

49. A Hooke's law spring is mounted horizontally over a frictionless surface. The spring is then compressed a distance d and is used to launch a mass m along the frictionless surface. What compression of the spring would result in the mass attaining double the kinetic energy received in the above situation?

A. 1.41 d

B. 1.73 d

C. 2.00 d

D. 4.00 d

50. A Hooke's law spring is mounted horizontally over a frictionless surface. The spring is then compressed a distance d and is used to launch a mass m along the frictionless surface. What compression of the spring would result in the mass attaining double the speed received in the above situation?

A. 1.41 d

B. 1.73 d

C. 2.00 d

D. 4.00 d

 

Solution
5 (1 Ratings )

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Physics 1 Year Ago 92 Views
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