The energy use in a household is different at different times of year
What will be an ideal response?
This is correct. In summer, most homes use air conditioning and electricity use
peaks. In winter, many homes heat with gas, and electricity use decreases.
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Energy and Mass: An electron-volt is the energy gained by an electron if it is accelerated through a potential difference of one volt. What is the equivalent to an electron-volt in kilograms? (c = 3.00 × 108 m/s, e = 1.60 × 10-19 C)
Fill in the blank(s) with the appropriate word(s).
The maximum weight that can be held under the conditions illustrated is
1) 104 N. 2) 105 N. 3) 0 N. 4) need more information It is interesting to note that in this case the piston actually is 5) pushed up by air. 6) pulled up by the vacuum.
The habitable zones for stars may be considerably larger if they have planetary systems containing
A) super-Earths with thick hydrogen atmospheres B) Earth-sized planets with thick carbon dioxide atmospheres C) super-Earths with thin hydrogen atmospheres D) Earth-sized planets with thick methane atmospheres
The thermal expansion of a solid is caused by
a. the breaking of bonds between atoms. b. increasing the amplitude of the atoms vibration. c. increasing the distance between equilibrium positions for the vibrating atoms. d. all of the above.