Perhaps the MOST convincing piece of evidence suggesting that Europa has a subsurface ocean is the
A) fact that the magnetic field of Jupiter is able to induce a magnetic field in Europa consistent with a salty ocean beneath its crust
B) fact that calculations suggest that there is enough internal heat to keep the ice melted beneath the crust
C) lack of impact craters on its surface
D) observation of iceberg-like features on its surface
A
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The energy of a photon is related to
A) the energy given to the atom that emits it. B) the energy transition in de-excitation. C) its frequency. D) all of the above E) none of the above
The restriction that no more than one electron may occupy a given quantum state in an atom was first stated by which of the following scientists?
a. Bohr c. de Broglie b. Pauli d. Heisenberg
The Moon's density, when compared to Earth's, is about
A) 10% as large. B) 25% as large. C) 50% as large. D) 60% as large. E) the same.
Fundamental Forces: The main reason that there is a limit to the size of a stable nucleus is
A. the limited range of the gravitational force. B. the short range nature of the strong nuclear force. C. the weakness of the gravitational force. D. the weakness of the electrostatic force.