Describe the seafloor spreading theory
What will be an ideal response?
Answer: The seafloor spreading theory states that ocean basins spread apart as the ocean crust grows at the mid-ocean ridges.
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Which is the correct evolutionary order?
a. protostar, ZAMS, YSO b. protostar, YSO, ZAMS c. ZAMS, protostar, YSO d. ZAMS, YSO, protostar
An electron with velocity v = 2.0 × 106 m/s is sent between the plates of a capacitor where the electric field is E = 200 V/m. If the distance the electron travels through the field is 1.0 cm, how far is it deviated (Y) in its path when it emerges from the electric field? (me = 9.1 × 10?31 kg, e = 1.6 × 10?19 C)
a.
0.84 mm
b.
0.44 mm
c.
0.44 cm
d.
0.84 cm
e.
1.4 mm
Which of the following people did NOT accept a heliocentric model for the universe?
a. Kepler b. Copernicus c. Tycho d. Galileo e. Newton
The diagram shows three isotherms for an ideal gas, with T3 ? T2 the same as T2 ? T1. It also shows five thermodynamic processes carried out on the gas. Rank the processes in order of the change in the internal energy of th gas, least to greatest.
A. I, II, III, IV, V B. V, then I, III, and IV tied, then II C. V, I, then III and IV tied, then II D. IV, V, III, I, II E. II, I, then III, IV, and V tied