Which of the following best explains the origin of metal-rich meteorites?
A) They are leftover chunks of rock from the earliest period in the formation of the solar system.
B) They are fragments of comets rather than of asteroids.
C) They are fragments of the core of an asteroid that was shattered by a collision.
D) They are fragments of rock chipped off the planet Mercury.
E) They are fragments of rock chipped off the planet Mars.
C) They are fragments of the core of an asteroid that was shattered by a collision.
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Thermodynamic Processes: Two processes are shown on the pV diagram in the figure. One of them is an adiabat and the other one is an isotherm. Which process is the isotherm?
A. process A B. process B C. The processes shown are neither isotherms nor adiabats. D. It is not possible to tell without knowing if the gas is monatomic or diatomic.
Why do we know that the red Balmer emission line in hydrogen represents a smaller quantum leap than the violet line?
What will be an ideal response?
Resolution: If the diameter of a radar dish is doubled, what happens to its resolving power assuming that all other factors remain unchanged?
A. The resolving power quadruples. B. The resolving power doubles. C. The resolving power is cut in half. D. The resolving power is reduced to one-quarter its original value.
The difference in the masses of a neutron and proton is
A) one. B) equal to the mass of an electron. C) less than the mass of an electron. D) more than the mass of an electron. E) zero.