A nearsighted person has a far point of 50 cm for his right eye and 150 cm for his left eye. For each eye, what power contact lens will allow the person to see gorgeous sunsets?
What will be an ideal response?
-2.0 diopters (right eye), -0.67 diopters (left eye)
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After an earthquake, an S-type seismic wave travels with a velocity of about 10 km/s and reaches another part of Earth in about 10 minutes. How far has the S-type wave traveled?
A. 1,000 km B. 60 km C. 600 km D. 100 km E. 6,000 km
An astronaut on a spaceship moving at 0.927c says that the trip between two stationary stars took How long does this journey take as measured by someone at rest relative to the two stars?
A) 20.0 y B) 2.81 y C) 4.05 y D) 22.1 y
Explain the significance of the Lyman Alpha Forest in studying the universe on the grandest of scales
What will be an ideal response?
If you exert 6 N across a distance of 2 m in 3 s you'll deliver a power of
A) 1 W. B) 3 W. C) 4 W. D) 6 W. E) more than 6 W