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  61. A Hooke's law spring compressed a distance d and

Question :   61. A Hooke's law spring compressed a distance d and : 2102111

 

61. A Hooke's law spring is compressed a distance d and is used to launch a mass m vertically to a height h above its starting position. Under the same compression d, the spring is now used to launch a mass of 2m. How high does this second mass rise?

A. h

B. h/2

C. h/1.41

D. h/4

62. A Hooke's law spring is compressed a distance d and is used to launch a mass m vertically to a height h above its starting position. Under double the compression, the spring is now used to launch the mass. How high does the mass now rise above its starting position?

A. 2 h

B. 1.41 h

C. 3 h

D. 4 h

63. A Hooke's law spring is compressed a distance d and is used to launch a particle of mass m vertically to a height h above its starting position. Under double the compression, the spring is now used to launch a particle of mass 2 m. How high does the second mass rise above its starting position?

A. h

B. 2 h

C. 3 h

D. 4 h

64. The quantity of work equal to one joule is also equivalent to which of the following?

A. watt

B. watt /s

C. watt ? s

D. watt /s2

65. The rate at which work is done is equivalent to which of the following?

A. increase in potential energy

B. thermal energy

C. potential energy

D. power

 

Solution
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Physics 1 Year Ago 96 Views
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