If you filter sea water to remove all of the particles you would be left with a clear
A) homogeneous mixture called a solution.
B) homogeneous mixture called a suspension.
C) heterogeneous mixture called a solution.
D) heterogeneous mixture called a suspension.
E) pure liquid.
Answer: A
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A loop of wire is moved through a region of uniform magnetic field. As it is moved, its orientation with respect to the magnetic field direction does not change. The induced current at this time in the loop:
A. depends on the shape of the loop B. depends on the magnitude of the field C. depends on the speed with which it is moved D. is zero E. depends on the acceleration of the loop
Write the conduction equation for radial heat flow of heat through a tube that has inside diameter of Di and outside diameter of D0.
What will be an ideal response?
Which of the following is NOT true about scannability?
A. Use short paragraphs and bulleted lists. B. Begin paragraphs with a topic sentence. C. Use of only uppercase characters can increase scannability. D. All of the above are true.
Which of the following is not evidence for dark matter?
A) the flat rotation curves of spiral galaxies B) x-ray observations of hot gas in galaxy clusters C) gravitational lensing around galaxy clusters D) the expansion of the universe