Which is the most efficient means of recording light?

A. photographic films
B. photomultiplier tubes
C. the human eye
D. charge-coupled device (CCD)


Answer: D

Physics & Space Science

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Degenerate matter has two peculiar properties that can affect a star. One is that the degenerate gas resists compression, and the other is that the degenerate gas ____

a. is not density dependent b. does depend on temperature c. does not depend on temperature d. is not pressure dependent. e. does depend on the type of nuclei present

Physics & Space Science

Buoyancy: A 200-N object floats with three-fourths of its volume beneath the surface of the water. What is the buoyant force on the object? The density of water is 1000 kg/m3.

A. 50 N B. 150 N C. 200 N D. 267 N E. It cannot be determined because we do not know the volume of the object.

Physics & Space Science

The luminosity of a star is the ____

a. total energy radiated by the star at 100 parsecs b. total energy radiated by the star c. total energy radiated by the star in one second d. average energy radiated by the star in one month e. average energy radiated by the star in one year

Physics & Space Science

During which step in the above figure would you take into consideration visual consistency and branding specifications?

A. Step 3 B. Step 4 C. Step 5 D. Step 6

Physics & Space Science