Physics, 20.01.2021 01:20 ellietalbot
9. Stars can be many different colors. Which star in the chart has the highest surface temperature? SC.8.E.5.5
Star A
Star B
Star C
Star D
Spectral Type
O
A
K
M
Color
Bluish
White
Orange
Reddish
A. Star A
B. Star B
C. Star C
D. Star D
Answers: 1
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Suppose a diode consists of a cylindrical cathode with a radius of 6.200Γ10^β2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.
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With the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 1.90
Answers: 1
9. Stars can be many different colors. Which star in the chart has the highest surface temperature?...
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