This photo shows a slice of a meteorite. What is its significance?
A) The shiny metal flakes embedded in rock are just what we expect if condensation really occurred as the nebular theory predicts.
B) It shows that accretion really did make objects many kilometers in size during the early stages of the formation of our solar system.
C) The surprisingly flat face of the meteorite indicates that the solar nebula must have been hot in the region in which this meteorite formed.
D) The structure and composition of the meteorite show that material that condensed beyond the frost line really did differ from material that condensed within the frost line.
A) The shiny metal flakes embedded in rock are just what we expect if condensation really occurred as the nebular theory predicts.
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Circular Motion of Charges: A charged particle is injected into a uniform magnetic field such that its velocity vector is perpendicular to the magnetic field lines. Ignoring the particle's weight, the particle will
A. move in a straight line. B. follow a spiral path. C. move along a parabolic path. D. follow a circular path.
You see a waxing crescent moon. You email your friend in New Zealand and ask her what moon phase she sees that night. She says
A) waxing crescent. B) waning crescent. C) waning gibbous. D) waxing gibbous.
When NASA was communicating with astronauts on the Moon, the time from sending on the Earth to receiving on the Moon was 1.28 s. Find the distance from Earth to the Moon. (The speed of radio waves is 3.00 × 10^8 m/s.)
a. 240 000 km b. 384 000 km c. 480 000 km d. 768 000 km
The electrical resistivity of a semiconductor