As the speed of an object increases, its wavelength
a. remains unchanged.
b. decreases.
c. increases.
d. is zero.
b
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Compared to the underlying photosphere and chromosphere, the corona is ________ in temperature
Fill in the blank(s) with correct word
Light is incident normally from air onto a liquid film that is on a glass plate. The liquid film is 164 nm thick, and the liquid has index of refraction 1.60. The glass has index of refraction n = 1.50
Calculate the longest visible wavelength (as measured in air) of the light for which there will be totally destructive interference between the rays reflected from the top and bottom surfaces of the film. (Assume that the visible spectrum lies between 400 and 700 nm.)
Three different-mass projectiles are launched from the top of a building each at different angles of elevation. Each particle has the same initial kinetic energy. Which particle has the greatest kinetic energy just as it impacts with the ground?
a. The one launched at the highest angle of elevation. b. The one with the highest mass. c. The one with the lowest mass. d. They all will have the same kinetic energy on impact.
A scuba diver has his lungs filled to half capacity (3 liters) when 10 m below the surface. If the diver holds his breath while quietly rising to the surface, what will the volume of the lungs be (in liters) at the surface? Assume the temperature is the same at all depths. (The density of water is 1.0 × 10^3 kg/m3.)
a. 5.9 b. 4.5 c. 6.4 d. 3.9 e. 3.1