The planet in our solar system with the highest average surface temperature is
A) Venus
B) Mercury
C) Earth
D) Neptune
A) Venus
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You want to confine an electron in a box (an infinite well) so that its ground state energy is 5.0 × 10-18 J
What should be the length of the box? (h = 6.626 × 10-34 J ? s, mel = 9.11 × 10-31 kg) A) 0.11 nm B) 0.22 nm C) 0.15 nm D) 0.18 nm
Stromatolites are structures created by
a. algae. b. brachiopods. c. sea worms. d. trilobites.
Meters: A galvanometer with a coil resistance of 80 ? deflects full-scale for a current of 2.0 mA. What series resistance is required to convert it to a voltmeter reading full scale for 200 V.
A. 100 m? B. 0.80 m? C. 13 M? D. 250 k? E. 100 k?
The source of energy that illuminates a lamp in your home is
A) the power company. B) the electrical outlet. C) atoms in the bulb filament. D) the wire leads to the lamp. E) the source voltage.