The peak wavelength in the continuous emission spectrum of a body is inversely proportional to its ____________________
Fill in the blank(s) with correct word
temperature
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How is the gravitational force between two objects affected by changes in the masses of the objects and by changes in the distance between the two objects?
A) The force increases with increased mass, and increases with increased distance. B) The force decreases with increased mass, and decreases with increased distance. C) The force decreases with increased mass, and increases with increased distance. D) The force increases with increased mass, and decreases with increased distance.
Decreasing the voltage across the two plates of a capacitor will produce what effect on the capacitor?
a. decrease charge c. decrease capacitance b. increase capacitance d. increase charge
Because the factor h on the right side of the Heisenberg uncertainty principle has units of Joule-seconds, it suggests that the energy of a system also has uncertainty. The uncertainty in energy depends on the length of the time interval during which a system exists. DEDt ³ h/4p. Suppose an unstable mass is produced during a high-energy collision such that the uncertainty in its mass is me/100
(me = 9.11 × 10^-31 kg.) How long will this particle exist? a. 6.4 × 10^-20 s b. 2.3 × 10^-23 s c. 1.0 × 10^15 s d. 1.2 × 10^13 s e. 8.1 × 10^-19 s
The diurnal rotation of the stars refers to the
A) apparent rotation of the celestial sphere due to the rotation of the Earth. B) movement of the stars across the sky during daytime hours. C) rate of spin of stars in their formation stage. D) particular constellations that are visible in different times of the year.