How much electromagnetic energy is contained in each cubic meter near the Earth's surface if the intensity of sunlight under clear skies is 1 000 W/m2?
a. 3.3 × 10^-6 J
b. 3.3 J
c. 0.003 J
d. 10-4 J
e. 3.0 × 10^5 J
A
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Which is the correct order of planetary object class during their formation?
a. planetesimals, protoplanets, and planets b. planets, planetesimals, and protoplanets c. planetesimals, planets, and planetettes d. protoplanets, planetesimals, and planets e. planetesimals, planetettes, and planets
Van der Waals bonding is due to
A) the transfer of electrons between atoms. B) atoms bonding to hydrogen molecules. C) unequal charge distribution around neutral molecules. D) the sharing of electrons between atoms.
The volcanoes of the Hawaiian Islands are
A) strato-volcanoes. B) composed of andesite. C) shield volcanoes. D) cinder cones.
A blacksmith drops a 550 °F piece of iron into a vat of 75 °F water in order to cool it to 100 °F. How many kilograms of water are needed per kilogram of iron? Assume all the thermal energy from the iron is transferred to the water and none of the water evaporates. The specific heats of water and iron are 4186 J/kg/°C and 448 J/kg/°C, respectively
a. 9.3 kg b. 0.78 kg c. 0.52 kg d. 1.9 kg