A 2.00 kg mass is connected to a spring with a spring constant of 900 N/m. The displacement is given by the expression x(t) = 12.0 cm sinWhat is the frequency of the simple harmonic motion?

A. 5.02 Hz
B. 4.21 Hz
C. 3.38 Hz
D. 2.56 Hz
E. 2.05 Hz


C. 3.38 Hz

Physics & Space Science

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The maximum mass of a white dwarf is ________

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Two converging lenses, the first with focal length 25 cm and the second with focal length 20 cm, are separated by 30 cm. A 4.0 cm tall object is placed 50 cm in front of the first lens. Where is the final image?

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The Observable Universe: How does the age of the universe (estimated at 14 billion years) introduce the concept of the "observable universe?" Suppose you feel, as do many astronomers, that the universe is much larger than the observable universe

Do you think there is any way to obtain direct evidence for this larger universe?

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