A certain ideal gas has a value of ? = 4/3. What is its molar specific heat at constant pressure?
A) 5R/2
B) 2R
C) 3R
D) 7R/2
E) 4R
E
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Household wiring can emit electromagnetic waves of frequency 60 Hz. What is the wavelength of these waves?
A. 
B. 
C. 
D. 
E. 
The force of Earth's gravity on a capsule in space will lessen as it moves farther away. If the capsule moves to twice its distance, the force toward Earth becomes
A) half. B) three-quarters. C) one-fourth. D) none of the above
Of all the forms of electromagnetic radiation, the one with the lowest frequency is:
A) gamma rays. B) ultraviolet rays. C) visible light. D) microwaves. E) radio waves.
An object is thrown vertically and has an upward velocity of 18 m/s when it reaches one fourth of its maximum height above its launch point. What is the initial (launch) speed of the object?
a. 35 m/s b. 25 m/s c. 30 m/s d. 21 m/s e. 17 m/s