A nearsighted person has a far point of 50. cm for one eye and 150. cm for the other. What power contact lenses allow the person to see distant objects?
What will be an ideal response?
-2.0 D and -0.667 D respectively
Physics & Space Science
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A boy on a bicycle approaches a brick wall as he sounds his horn at a frequency 400.00 Hz
The sound he hears reflected back from the wall is at a frequency 408.00 Hz. At what is the speed is the boy riding his bicycle toward the wall? Assume the speed of sound in air is 340 m/s. A) 3.68 m/s B) 333 m/s C) 6.67 m/s D) 6.80 m/s E) 3.37 m/s
Physics & Space Science
A substance with a greater specific heat will ________ have a large latent heat
A) sometimes B) always C) never
Physics & Space Science
Mars appears red due to ________ on its surface
Fill in the blank(s) with correct word
Physics & Space Science
Dark dust clouds are cooler than their surroundings
Indicate whether the statement is true or false
Physics & Space Science