When your eye forms an image, the ________ plays a role analogous to the detector in a camera.
A) retina
B) lens
C) pupil
D) optic nerve
A) retina
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The ____________________ of a telescope is determined by the size of the objective
Fill in the blank(s) with correct word
Which moon orbits Pluto?
a. Ceres b. Eris c. Charon d. Oberon e. Triton
For glucose dissolving in water at 298 K, the diffusivity is 6.9 x 10^-10 m^2/s. What do you expect the diffusivity of water in glucose to be?
What will be an ideal response?
The star Vega has an apparent visual magnitude of 0.03 and the star HR 4374 has an apparent visual magnitude of 4.87 . It has been determined that both stars are at the same distance from Earth. What does this information tell us about the two stars?
a. Vega must be closer to Earth than HR 4374. b. Vega must be farther from Earth than HR 4374. c. Vega must produce less energy per second than HR 4374. d. Vega must produce more energy per second than HR 4374. e. Vega will appear fainter to us than HR 4374.