The predominant gas in the atmosphere of Earth is
A) oxygen.
B) nitrogen.
C) water vapor.
D) carbon dioxide.
E) methane.
Answer: B
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Equation of Traveling Waves: The vertical displacement y(x,t) of a horizontal string aligned along the x-axis is given by the equation y(x,t) = (6.00 mm) cos[(3.25 m-1)x - (7.22 s-1)t]. What are the (a) wavelength and (b) period of this wave?
What will be an ideal response?
What property summarizes a body's tendency to stay in the state of rest or motion?
A. acceleration B. volume C. pressure D. temperature E. inertia
Which of the following is the most convincing observation that suggests that like Europa, Ganymede may also have a subsurface ocean?
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A neutron has a mass of 1.67 × 10^?27 kg. The de Broglie wavelength is 1.4 × 10^?10 m. How fast is the neutron going? (in m/s)
a. 3.4 × 10^3 b. 2.8 × 10^3 c. 3.9 × 10^3 d. 2.6 × 10^3 e. 1.7 × 10^3