Which contracts more when the temperature is decreased? Equal volumes of
A) iron.
B) wood.
C) water.
D) helium.
E) all contract the same
Answer: D
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If a volume of air is warmed, it expands. If a volume of air expands, it
A) warms. B) cools. C) neither warms nor cools.
What type of bond is(are) individually weakest?
a. hydrogen b. ionic c. covalent d. Hydrogen and covalent are equally weak. e. Ionic and covalent are both weaker than hydrogen.
Ancient astronomers often had difficulty explaining _____, the occasional westward motion of the planets
a. parallax b. eccentrics c. retrograde motion d. deferents e. epicycles
At a depth of about 1030. m in the sea the pressure has increased by 100. atmospheres (to about 107 N/m2). By how much has 1 m3 of water been compressed by this pressure? The bulk modulus of water is 2.3 × 109 N/m2
What will be an ideal response?