Which produces the narrowest diffraction pattern?
a. white light
b. violet light
c. yellow light
d. red light
e. green light
b
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Heat Engines: A heat engine has an efficiency of 35.0% and receives 150 J of heat per cycle.(a) How much work does it do in each cycle?(b) How much heat does it "waste" in each cycle?
What will be an ideal response?
A hypothetical particle has a mass of 510 MeV/c2. If such a particle at rest decays into two gamma-ray photons, what is the wavelength of each photon?
(1 eV = 1.60 × 10-19 J, c = 3.00 × 108 m/s, h = 6.626 × 10-34 J? s)
The Doppler shift applies only to the line spectrum. It does not apply to the continuous (blackbody) spectrum.
Answer the following statement true (T) or false (F)
Compared to the buoyant force of the atmosphere on a 1-kilogram iron block, the buoyant force on a nearby 1-kilogram helium-filled balloon is
A) considerably less. B) considerably more. C) the same.