Photos of Jupiter's rings show that they are very bright when they are scattering light backward
Indicate whether the statement is true or false
False
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Standing Sound Waves: An pipe of length L that is open at both ends is resonating at its fundamental frequency. Which statement about the sound is correct?
A. The wavelength is 2L and there is a displacement node at the pipe's midpoint. B. The wavelength is 2L and there is a displacement antinode at the pipe's midpoint. C. The wavelength is L and there is a displacement node at the pipe's midpoint. D. The wavelength is L and there is a displacement antinode at the pipe's midpoint.
Current: A jeweler needs to electroplate gold, having an atomic mass of 196.97 g/mol, onto a bracelet. He knows that the charge carriers in the ionic solution are singly-ionized gold ions, Au+, and has calculated that he must deposit 0.20 g of gold to reach the necessary thickness. How much current does he need to plate the bracelet in 3.0 hours? (e = 1.60 × 10-19 C, NA = 6.02 × 1023 atoms/mol)
A. 9.1 mA B. 540 mA C. 33 A D. 1800 mA
A nonprismatic cantilever bar has an internal cylindrical hole of diameter d/2 from 0 to x, so the net area of the cross section for Segment 1 is (3/4)A. Load P is applied at x, and load 2P/2 is applied at x 5 L. Assume that E is constant. The length of the hollow segment, x, required to obtain axial displacement ? 5 PL/EA at the free end is:
(A) x 5 L/5
(B) x 5 L/4
(C) x 5 L/3
(D) x 5 3L/5
Why are sound waves not polarizable?
a. Because they are not electromagnetic. b. They are not transverse. c. They are not longitudinal. d. But this is readily possible!