Oxygen molecules are 16 times more massive then hydrogen molecules. At a given temperature, the average molecular kinetic energy of oxygen, compared to hydrogen
A. is greater.
B. is less.
C. is the same.
D. more data is required to answer correctly
C. is the same.
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Radiometric dating assumes that, once a mineral has crystallized, any daughter product results only from the decay of the original unstable parent. Some complications are
A) variations in temperature. B) failure to take samples too close together. C) "time clock resetting" due to metamorphism, and product leakage that yields false age estimation. D) a poorly maintained teleometer.
Martian volcanoes are larger than volcanoes on Earth because
A) Mars's weaker gravity makes it easier for tall structures to be built up. B) the lack of plate tectonics on Mars means that mantle plumes remain stationary relative to the surface, building up huge, single mountains. C) Mars has more internal heat than the Earth so volcanoes naturally grow to much larger sizes D) Both A and B
A proton with mass 1.67 × 10^?27 kg moves in an accelerator with a speed of 0.780c. What is its total energy? (c = 3.00 × 10^8 m/s)
a. 1.50E–10 J b. 3.90E–10 J c. 2.40E–10 J d. 7.51E–19 J e. 1.28E–18 J
An oil film with refractive index 1.48 and thickness 290 nm is floating on water and illuminated with white light at normal incidence. What is the wavelength of the dominant color in the reflected light?
A) yellow (572 nm) B) blue (470 nm) C) blue-green (493 nm) D) violet (404 nm) E) green (541 nm)