Suppose an object is placed 6.0 cm in front of a lens that has a focal length of 4.0 cm. Where is the image located? What are the magnification and the character of the image?


12 cm beyond the 4.0-cm lens, M = ?2.0, the image is real and inverted

Physics & Space Science

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Describe the Miller experiment and explain its importance

What will be an ideal response?

Physics & Space Science

Dark matter is ___

a. a cloud of black holes and brown dwarfs in the galactic halo b. extremely cold, supermassive molecular clouds in the disk c. an unknown type of mass that does not emit or absorb photons d. the substance of which black holes are made e. a theory to explain galactic formation that has been proven wrong

Physics & Space Science

Which of the following correctly describes the relationship between Newton's theory of gravity and general relativity?

A) Newton's theory of gravity is an approximation to general relativity that works when gravity is relatively weak but breaks down when gravity is strong. B) Newton's theory of gravity is now known to be false, and we were previously misled to think it was true by measurement errors. C) Newton's theory of gravity and general relativity give the same answers, but the former tells us to think of gravity as a force and the latter tells us to think of gravity as curvature of spacetime. D) General relativity applies at the subatomic level, but Newton's theory of gravity does not.

Physics & Space Science

Objects that radiate relatively well

A) absorb radiation relatively well. B) reflect radiation relatively well. C) both of these D) neither of these

Physics & Space Science