Captain Rickard orders his starship to accelerate from rest at a rate of "1g" (accel = 9.8 m/s2). How long does it take the starship to reach one-tenth the speed of light if light travels 300. megameters/s?
What will be an ideal response?
35. days
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When Voyager 2 flew by Neptune in 1989, the largest feature observed was the _____, which is roughly the size of Earth
A) Cassini Division B) Great Dark Spot C) Kuiper Belt D) Maunder Minimum
What causes the greenhouse effect?
A. Ozone absorbs solar ultraviolet radiation and warms the atmosphere. B. Water vapor and carbon dioxide absorb infrared radiation from the ground and reradiate the heat toward the surface. C. Oxygen and nitrogen scatter sunlight which heats the atmosphere by its frictional passage. D. Water vapor and carbon dioxide absorb visible sunlight and warms the atmosphere. E. Fluorocarbons absorb infrared radiation from the Sun and heat the surface.
Fusion is used to produce the largest nuclei known to exist
a. True b. False Indicate whether the statement is true or false
A silicon monoxide (n = 1.45) film of 108 nm thickness is used to coat a glass camera lens (n = 1.56). What wavelength of light in the visible region (390 to 710 nm) will be most efficiently transmitted by this system? (1 nm = 10-9 m)
a. 580 nm c. 492 nm b. 400 nm d. 626 nm