_____ is an example of a Jovian planet
A) Uranus
B) Earth
C) Mercury
D) Mars
A
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Potassium Iodide (chemical formula: KI) has a face-centered cubic structure (just like sodium chloride). If the distance between crystal planes is d = 0.353 nm and X-rays of wavelength ? = 0.0934 nm are used, what is the smallest angle ? at which a diffraction maximum may be obtained?
a. 9.92° b. 7.60° c. 13.3° d. 15.5° e. 6.52°
The distance between successive nodes for a standing wave pattern is ________ the wavelength (give multiple or fraction).
Fill in the blank(s) with the appropriate word(s).
In a fusion reactor, the high temperature of the order of 108 K is required in order that what condition is met?
a. melt down the hydrogen fuel b. strip the hydrogen atoms of their electrons c. break the protons into their elementary particle sub-parts d. overcome Coulomb repelling forces between protons
The Moon is slowly moving away from Earth
Indicate whether the statement is true or false