Sound waves are
A. transverse waves
B. longitudinal waves
B. longitudinal waves
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Conversion of Units: A speed of 60 mi/h is closest to which of the following? (2.54 cm = 1.00 in.)
A. 60 m/s B. 20 m/s C. 30 km/h D. 120 m/s E. 30 m/s
Isotopic evidence for the presence significant quantities of liquid water on Mars in the past comes from the observation of
A) an elevated ratio of deuterium to hydrogen B) an elevated ratio of hydrogen to deuterium C) a complete absence of hydrogen in the atmosphere D) a complete absence of deuterium in the atmosphere
The molecular weight of carbon dioxide is 44.0 g/mol. What is the internal energy in 3.00 kg of carbon dioxide at 300 K? As an approximation, treat the carbon dioxide gas as if it was monatomic
A) 2.55 × 105 J B) 1.70 × 105 J C) 2.55 × 104 J D) 1.70 × 104 J E) 1.70 × 106 J
In Bragg's law, 2d sin ? = m?, how is ? measured?
a. from the reflecting crystal plane b. from the normal to the reflecting crystal plane c. from the direction of the incident beam d. from the normal to the direction of the incident beam