Based on all we know about the terrestrial worlds, what single factor appears to play the most important role in a terrestrial planet's geological destiny?
A) whether or not it has liquid water B) its composition
C) its size D) its distance from the Sun
C
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The most accurate way to determine the surface temperature of a star is to study
a. the pattern of absorption lines from various atoms. b. the relative intensities of light measured through different photometric filters. c. the peak wavelength of the star's continuous blackbody spectrum. d. pattern of emission lines that are on the star's spectrum.
A one-kilogram aluminum ingot is heated from 0°C to 100°C. By what amount does its mass change? The specific heat of aluminum is 900 J/(kg?K)
A) Its mass does not change. B) Its mass increases by 0.50 × 10-12 kg. C) Its mass decreases by 0.50 × 10-12 kg. D) Its mass increases by 1.0 × 10-12 kg. E) Its mass decreases by 1.0 × 10-12 kg.
An aquifer is a reservoir of water beneath the ground surface. Describe five physical zones in an aquifer. (Hint: Consider in-flow and out-flow.)
What will be an ideal response?
Faraday's Law: A flat square coil of wire with 15 turns and an area of 0.40 m2 is placed with the plane of its area parallel to a magnetic field of 0.75 T. The coil is flipped so its plane is perpendicular to the magnetic field in a time of 0.050 s. What is the magnitude of the average induced emf in the coil?
A. 6.0 V B. 36 V C. 45 V D. 90 V