The ultraviolet catastrophe predicts that:
a. all objects should radiate extreme amounts of ultraviolet light.
b. as an object gets hotter its light will change from dull red to blue white.
c. a black body can absorb an infinite amount of radiation if the radiation is in the ultraviolet region.
d. the radiated energy approaches zero as the wavelength approaches zero.
a
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Ideal Gas Law: A sealed cylinder fitted with a movable piston contains ideal gas at 27°C, pressure 0.500 × 105 Pa, and volume 1.25 m3. What will be the final temperature if the gas is compressed to 0.800 m3 and the pressure rises to 0.820 × 105 Pa?
A. 42°C B. 68°C C. 130°C D. 250°C E. 150°C
A long cylinder (radius = 3.0 cm) is filled with a nonconducting material which carries a uniform charge density of 1.3 mC/m3 . Determine the electric flux through a spherical surface (radius = 2.0 cm) which has a point on the axis of the cylinder as its center
a. 5.7 N × m2/C b. 4.9 N × m2/C c. 6.4 N × m2/C d. 7.2 N × m2/C e. 15 N × m2/C
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A long solenoid (n = 1 500 turns/m) has a cross-sectional area of 0.40 m2 and a current given by I = (4.0 + 3.0t2) A, where t is in seconds. A flat circular coil (N = 300 turns) with a cross-sectional area of 0.15 m2 is inside and coaxial with the solenoid. What is the magnitude of the emf induced in the coil at t = 2.0 s?
a. 2.7 V b. 1.0 V c. 6.8 V d. 0.68 V e. 1.4 V