When is latent heat absorbed?
A. During evaporation of water.
B. During freezing of water.
C. During condensation of water.
Answer: A
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Janet pulls a 10-kg cart with a constant force of 30 N. The acceleration of the cart is
A. 30 m/s2. B. 3.0 m/s2. C. 10 m/s2. D. 0.3 m/s2.
Is the mass of an atomic nucleus greater or less than the sum of the masses of the nucleons composing it? Why don't the nucleon masses add up to the total nuclear mass?
A. Less. The individual nucleons have greater mass when separated from the nucleus. This additional mass is a result of the energy of separation. B. Neither. The mass of the atomic nucleus is exactly the sum of the masses of the nucleons. C. Greater. The mass of the atomic nucleus also has mass of the "atomic glue" that holds the nucleons together in the nucleus. D. Greater. We need to add the masses of the surrounding electrons to the masses of the nucleons.
The water table is
A) located 100 feet under the ground. B) part of the mantle. C) flat like a kitchen table. D) uneven and generally follows surface contours.
The subfield of geography that studies the geography of the past and how geographic distributions have changed through time is called
A) the history of geography. B) human geography. C) cultural geography. D) historical geography. E) geopolitics.