In blackbody radiation, the energy is radiated uniformly in every region of the spectrum, so the radiating body appears black in color
Indicate whether the statement is true or false
FALSE
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Which statement best describes the smaller moons of Uranus?
a. bright, spherical bodies b. bright, highly grooved surfaces c. dark, icy worlds d. dark, rocky worlds e. dark, highly active worlds
The wavelength of ultrasound at 1 million Hz in air where the speed of sound is 340 m/s is
a. 0.00000034 m. b. 0.0000034 m. c. 0.00034 m. d. 0.34 m. e. 340,000,000 m.
A 5.0-C charge is 10 m from a small test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location of the test charge?
A) 0.045 N B) 0.45 N C) 4.5 N D) 45 N E) 450 N
A rectangular loop (area = 0.15 m2) turns in a uniform magnetic field with B = 0.20 T. At an instant when the angle between the magnetic field and the normal to the plane of the loop is (p/2) rad and increasing at the rate of 0.60 rad/s, what is the magnitude of the emf induced in the loop?
a. 24 mV b. zero c. 18 mV d. 20 mV e. 6.0 mV