The peak of the radiation curve of a blackbody moves toward larger wavelength as its temperature __________
Fill in the blank(s) with correct word
decreases
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Naturally occurring uranium is mostly
A) 14U. B) 238U. C) 233U. D) 235U. E) good to eat.
Electrical resistance is greater for
A) dry skin. B) wet skin. C) both the same
Red giant stars are I. more luminous than the Sun. II. larger in diameter than the Sun. III. cooler than B stars. IV. located above the main-sequence stars in the H-R diagram
a. I & II b. II & IV c. I, II, & IV d. II, III, & IV e. I, II, III, & IV
An object of mass m is attached to a horizontal spring, stretched to a displacement A from equilibrium and released, undergoing harmonic oscillations on a frictionless surface. The experiment is then repeated with a mass of 4m. Compared to the original total mechanical energy, the subsequent total mechanical energy of the object with mass 4m is
1.greater. 2.less. 3.equal.