In order for two objects to have the same temperature, they must
a. be in thermal equilibrium.
b. be in thermal contact with each other.
c. have the same relative "hotness" or "coldness" when touched. d. have all of the properties listed above. e. have only properties (b) and (c) above.
A
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A potential difference of 1.00 V is maintained across a 10.0-V resistor for a period of 20.0 s. What total charge passes by a point in one of the wires connected to the resistor in this time interval?
1.200 C 2.20.0 C 3.2.00 C 4.0.005 00 C 5.0.050 0 C
You see colors in a rainbow because of __________
Fill in the blank(s) with correct word
One of the patterns that shows up nicely in the periodic table is that similar chemical properties
A. make great batteries, if you choose a metal from two separate rows. B. are displayed by elements in the same column. C. correlate to the mass of each element on a row. D. exist on each diagonal, starting with hydrogen, then lithium, and so forth.
By operating a reversible heat engine with an ideal gas as the working substance in a Carnot cycle and measuring the ratio Qc /Qh, we can calculate
a. n, the number of moles of the ideal gas. b. the ratio Vc /Vh of the volumes of the ideal gas. c. the ratio Pc /Ph of the pressures of the ideal gas. d. the ratio PcVc /PhVh of the products of volumes and pressures of the ideal gas. e. the value of Avogadro's number.