The wavelength of a wave multiplied by the frequency of the wave is the wave's
a. speed.
b. frequency.
c. wavelength.
d. amplitude.
e. loudness.
a
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In simple harmonic motion, the magnitude of the acceleration is:
A. constant B. proportional to the displacement C. inversely proportional to the displacement D. greatest when the velocity is greatest E. never greater than g
Describe a model for explaining how light is transmitted through glass
What will be an ideal response?
How does the rate of hydrogen consumption of a main-sequence B star compare to the hydrogen consumption of the sun?
A) A B star consumes hydrogen at a rate about 107 to 108 times faster than the sun. B) A B star consumes hydrogen at a rate about 103 to 104 times faster than the sun. C) A B star consumes hydrogen at a rate about 6 to 10 times faster than the sun. D) This cannot be answered using the HR diagram.
A single-crystal wafer of silicon is to be used as a substrate for the deposition of thin-metal films that could be affected by the substrate’s crystallographic orientation. However, the crystallographic orientation of this particular wafer is not known. The wafer is placed in an x-ray diffractometer with a copper x-ray tube with a K? x-ray line at 0.1542 nm, and an intense peak is measured at an angle of 29.46°. Silicon is FCC with a lattice parameter of 0.543 nm. What planes are parallel to the surface of this silicon crystal?
What will be an ideal response?