What is the energy released for the reaction where the products are 0.0051 u less than the reactants? (1 u = 931.5 MeV/c2)
a. 7.6 MeV
c. 4.8 MeV
b. 5.2 MeV
d. 8.5 MeV
C
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Which of the following are the jovian planets?
a) Jupiter, Saturn, Uranus, Neptune b) Earth, Mars, Jupiter, Saturn c) Uranus, Neptune, and Pluto d) Mercury, Jupiter, and Saturn e) Mercury, Venus, Earth, Mars
A wheel of moment of inertia of 5.00 kg-m2 starts from rest and accelerates under a constant torque of 3.00 N-m for 8.00 s. What is the wheel's rotational kinetic energy at the end of 8.00 s?
A) 57.6 J B) 122.0 J C) 91.9 J D) 64.0 J E) 78.8 J
Why do the constellations that are visible in the sky at night change with the seasons?
A. because the celestial sphere revolves around Earth B. because Earth revolves around the Sun C. because Earth rotates about an axis D. because Earth is a sphere
What is a so-called "hot Jupiter"?
A) a planet with a mass and composition similar to what we would expect if Jupiter were hotter B) a planet with a mass similar to Jupiter but very close to the central star and therefore hot C) a planet with a mass similar to Jupiter but composition similar to Mercury D) a Jupiter mass planet orbiting a star that is more massive and hotter than the Sun