Nearsightedness can usually be corrected with

A) converging lenses.
B) diverging lenses.
C) achromatic lenses.
D) cylindrical lenses.
E) spherical lenses.


B

Physics & Space Science

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Like latitude on Earth, ________ in the sky is measured in degrees north and south of the equator

Fill in the blank(s) with correct word

Physics & Space Science

At what temperature is the Celsius scale reading equal to twice the Fahrenheit scale reading?

a. ?12.3°F b. ?24.6°F c. ?12.3°C d. ?6.1°C e. ?20°F

Physics & Space Science

The mass of Mars, 6.40 × 1023 kg, is about one-tenth that of Earth, and its radius, 3395 km, is about half that of Earth. What is the mean density (mass divided by volume) of Mars in kilograms per cubic meter?

A) 9.76 × 102 kg/m3 B) 1.95 × 103 kg/m3 C) 3.90 × 103 kg/m3 D) 7.81 × 103 kg/m3

Physics & Space Science

The top of the thermosphere is called the

a. stratopause. b. tropopause. c. mesopause. d. thermopause.

Physics & Space Science