In order, from top to bottom, in the activity series come K, Zn, Pb, H, Cu, and Au. Therefore,
a. adding Pb to ZnCl2 will release Zn.
b. adding Cu to HCl will release hydrogen.
c. adding Au to HCl will release hydrogen.
d. adding Cu to AuCl3 will release Au.
d
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Which of the following is true of the Jovian planets?
A) They grew by gravitational collapse. B) They did not form from the solar nebula. C) They developed very slowly. D) They did not undergo differentiation.
What kinds of light are these telescopes designed to detect?
A) radio waves B) x-rays C) infrared and visible light D) ultraviolet light E) light with extremely short wavelengths
A person is sitting at rest on a stool that is free to rotate about a vertical axis. The person holds a bicycle wheel that is rapidly spinning counterclockwise when viewed from above. The person then flips the wheel over. What happens as a result?
A. The person rotates counterclockwise (as seen from above). B. The person rotates clockwise (as seen from above). C. Nothing. The wheel’s angular momentum is simply dissipated in the person’s body. D. Nothing, because the wheel’s angular momentum remains the same before and after the flip. E. Something else happens (specify).
A particle moves at a constant speed in a circular path with a radius of 2.06 cm. If the particle makes four revolutions each second, what is the magnitude of its acceleration?
a. 20 m/s2 b. 18 m/s2 c. 13 m/s2 d. 15 m/s2 e. 24 m/s2