Air moves through the duct shown. The work-rate terms that must be accounted for include:
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Which of the following provides evidence that all life on Earth shares a common ancestor?
A) All life on Earth shares certain biochemical similarities, including use of DNA as its hereditary molecule. B) All life on Earth requires energy and nutrients to survive. C) All life on Earth requires liquid water to survive. D) All life on Earth shares similarities in appearance that could not possibly be a coincidence.
Which of the following Mars surface features provides dramatic evidence that volcanism has played a role in shaping the surface of Mars?
A. the polar caps B. the southern highlands C. Valles Marineris D. Olympus Mons
A coating is being applied to reduce the reflectivity of a pane of glass to light with a frequency of 5.75 × 1014 Hz that is incident normally on the pane
If the material has an index of refraction of 1.375 and the glass has an index of refraction of 1.537, what is the minimum thickness the coating should have? (c = 3.00 × 108 m/s) A) 60.0 nm B) 80.1 nm C) 65.2 nm D) 145 nm E) 94.9 nm
A 12 ohm resistor and a 24 ohm resistor are connected in series with a 6.0 V battery. The correct statement is
A. the current in each resistor is the same. B. the voltage difference between the ends of each resistor is the same. C. the power dissipated in each resistor is the same. D. the smaller resistor carries the larger current.