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Question
An ideal spring is used to fire a 15.0-g block horizontally. The spring has a spring constant of 20 N/m and is initially compressed by 7.0 cm. The kinetic energy of the block as it leaves the spring is:
A) 0 J
B) 2.5 x10-2J
C) 4.9 x10-2J
D) 9.8 x10-2J
E) 1.4 J
Answer
This answer is hidden. It contains 1 characters.
Related questions
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In a photoelectric effect experiment at a frequency above cut off, the stopping potential is proportional to:
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In a photoelectric effect experiment at a frequency above cut off, the number of electrons ejected is proportional to:
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The resolving power of a telescope can be increased by:
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Q:
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