What is the average kinetic energy per molecule of an ideal gas at a temperature of 300 K? Boltzmann's constant is k = 1.38 × 10-23 J/K
A)
1.7 × 10-21 J
B)
8.3 × 10-21 J
C)
6.2 × 10-21 J
D)
2.1 × 10-21 J
E)
4.1 × 10-21 J
C
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The solar energy coming to the earth by radiation is 1340 W/m2 when the temperature of the Sun is 5800 K. If the temperature of the Sun increased by 10.00%, then what would be the amount of solar radiation coming to the earth?
A. 1492 W/m2 B. 1632 W/m2 C. 1828 W/m2 D. 1962 W/m2 E. 2004 W/m2
According to the chart shown in figure Q13.6, how many stable isotopes of 30Zn exist?
A. One
B. Two
C. Three
D. Five
E. There is no way to determine this from the chart.
A segment of a drive shaft (d2 5 200 mm, d1 5 160 mm) is subjected to a torque T 5 30 kN?m. The allowable shear stress in the shaft is 45 MPa. The maximum permissible compressive load P is approximately:
(A) 200 kN
(B) 286 kN
(C) 328 kN
(D) 442 kN
In an LRC circuit, if the condition R2 = L/C holds, the circuit is
A) overdamped. B) not affected. C) underdamped. D) totally inundated. E) critically damped.