A pipe of length 10.0 m increases in length by 2.0 cm when its temperature is increased by 90°F. What is its coefficient of linear expansion?
a. 22 × 10^–6/°C
c. 13 × 10^–6/°C
b. 17 × 10^–6/°C
d. 40 × 10^–6/°C
D
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A solar eclipse can only happen during a:
A) new moon. B) solstice. C) first quarter moon. D) full moon. E) perihelion passage of the Sun.
How much energy is dissipated as heat during a two-minute time interval by a 1.5-kW resistor which has a constant 20-V potential difference across its leads?
a. 58 J b. 46 J c. 32 J d. 72 J e. 16 J
The resolution limit of a circular aperture telescope is
A) inversely proportional to wavelength. B) proportional to frequency of light. C) less than that of a square aperture whose diagonal equals the diameter. D) inversely proportional to aperture size.
The thing that "waves" in the Schrödinger equation is a
A) particle's position. B) particle's momentum. C) wave function. D) all of the above E) none of the above