A body in a room at 300 K is heated to 3,000 K. The wavelength of the most intense EM radiation emitted by the body at 3,000 K is 10 times the wavelength of the most intense EM radiation at 300 K
Indicate whether the statement is true or false
F
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Two point charges each have a value of 3.0 C and are separated by a distance of 4.0 m. What is the electric field at a point midway between the two charges?
A) zero B) 3.6 × 107 N/C C) 9.0 × 107 N/C D) 18 × 107 N/C E) 4.5 × 107 N/C
Simple Harmonic Motion: If the angular frequency of the motion of a simple harmonic oscillator is doubled, by what factor does the maximum acceleration of the oscillator change?
A. 2 B. 4 C. It does not change. D. 1/2 E. 1/4
The Doppler technique for planet detection has found Earth-like planets around nearby Sun-like stars
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A proton has a total energy of 2.5 × 10^?10 J. How fast is it moving? (mp = 1.67 × 10^?27 kg)
a. 0.90c b. 0.80c c. 0.70c d. 0.60c e. 0.40c