A 24.0-L tank contains ideal helium gas at 27°C and a pressure of 22.0 atm. How many moles of gas are in the tank? (R = 8.31 J/mol ? K, 1 atm = 101 kPa)
A) 238 mol
B) 138 mol
C) 17.5 mol
D) 21.4 mol
E) 76.0 mol
D
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On a warm day a pool of water transfers energy to the air as heat and freezes. This is a direct violation of:
A. the zeroth law of thermodynamics B. the first law of thermodynamics C. the second law of thermodynamics D. the third law of thermodynamics E. none of the above
Exhibit 17-3Four wave functions are given below. I.y(x, t) = 5sin(4x- 20t + 4) II.y(x, t) = 5sin(3x- 12t + 5) III.y(x, t) = 5cos(4x + 24t + 6) IV.y(x, t) = 14cos(2x- 8t + 3)Use this exhibit to answer the following question(s). Refer to Exhibit 17-3. Rank the wave functions in order of the magnitude of the frequencies of the waves, from least to greatest.
A. IV, II, I, III B. IV = II, I, III C. III, I, II, IV D. IV, I, II, III E. III, IV, II, I
Consider a bus designed to obtain its motive power from a large rotating flywheel (1400. kg of diameter 1.5 m) that is periodically brought up to its maximum speed of 3600. rpm by an electric motor at the terminal
If the bus requires an average power of 12. kilowatts, how long will it operate between recharges?
As you go higher and higher above the surface of the Earth, the acceleration of a freely falling body __________
Fill in the blank(s) with correct word