Molecular Vibration: In its lowest quantum state, the energy of a diatomic harmonic oscillator having frequency f is
A. hf/4.
B. hf/2.
C. hf.
D. 3hf/2.
Answer: B
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a. 9.00 atm b. 90.0 atm c. 100 atm d. 111 atm e. 130 atm
Power: A child pulls on a wagon with a force of 75 N. If the wagon moves a total of 42 m in 3.1 min, what is the average power delivered by the child?
A. 17 W B. 21 W C. 22 W D. 26 W
A bolt hole in a brass plate has a diameter of 1.2 cm at 20.°C. What is the diameter of the hole when the plate is heated to 220.°C? (The coefficient of linear thermal expansion for brass is 19 × 10-6 per degree C.)
A) 1.205 cm B) 1.210 cm C) 1.195 cm D) 1.190 cm E) 1.200 cm
In a country where the unit of currency is the Passi, kerosene costs 130 Passi per liter, and one dollar buys 227 Passi. What is the cost of kerosene in dollars per gallon? (1.00 gal = 3.79 L)
What will be an ideal response?