A 1.0 kg mass is connected to a spring with a spring constant of 9.00 N/m. If the initial velocity is 4.0 cm/s and the initial displacement is 2.0 cm, then what is the maximum spring potential energy of the simple harmonic motion?
A. 0.0026 J
B. 0.0059 J
C. 0.0035 J
D. 0.0067 J
E. 0.0060 J
A. 0.0026 J
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The existence of asteroids is supporting evidence of the solar nebula hypothesis, in that ________.
A. the gaps in the asteroid belt are created by the same process that creates gaps in Saturn's rings B. the asteroids are probably fragments of a shattered planet C. asteroids in the inner Solar System are small and rocky, while those in the outer Solar System are larger and have atmospheres D. inner belt asteroids are richer in silicate and iron materials and contain fewer carbon-rich materials
The surface of the neutron star RXJ2015 has a temperature of 10 million K. This neutron star emits radiation most strongly in
A) x-ray light. B) visible light. C) radio light. D) infrared light.
Which of the following is not considered a major physical science:
a. Physics b. Astronomy c. Geology d. Biology e. Meteorology
When observing the Sun in visible light, the photosphere appears brighter than the corona. However, when observing the Sun in x-rays, the corona appears brighter. The reason for this is that
A. the gas in the corona has a much lower density than that in the photosphere and so emits mostly emission lines at x-ray wavelengths.
B. the temperature in the corona is more than 1 million K while that in the photosphere is about 5800 K and so the corona emits a larger fraction of its luminosity at short wavelengths.
C. more nuclear reactions are occurring in the corona than the photosphere and these produce high-energy (x-ray and gamma-ray) photons.