A farsighted person with astigmatism would be prescribed a lens that is

a. diverging only.
b. both converging and cylindrical.
c. diverging only.
d. both converging and cylindrical.


d

Physics & Space Science

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If you measure a parallax of 0.006 arc seconds from an observatory on the ground, your uncertainty will be about _____

A) 10 percent B) 75 percent C) 30 percent D) 57 percent

Physics & Space Science

Explain how shepherd moons constrain the motions of small particles into a narrow ring about a planet

What will be an ideal response?

Physics & Space Science

A heater is rated at 1200 watts for a 120-volt source.The current in amperes drawn by the heater is

a. 0.1 b. 10. c. 144,000 d. none of the above.

Physics & Space Science

The substances formed in a chemical reaction are called the ______________

Fill in the blank(s) with correct word

Physics & Space Science