What is the temperature of a system in thermal equilibrium with another system made up of water and steam at one atmosphere of pressure?
a. 0°F
c. 0 K
b. 273 K
d. 100°C
D
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Thin Films: A sodium light, having wavelength 589.3 nm, is used to view a soap film to make it look black when directed perpendicular to the film. What is the minimum thickness of the soap film if the index of refraction of soap solution is 1.38?
A. 114 nm B. 194 nm C. 294 nm D. 314 nm E. 214 nm
Propped cantilever beam AB has moment M1 applied at joint B. Framework ABC has moment M2 applied at C. Both structures have constant flexural rigidity EI. If the ratio of the applied moments M1/M2 5 3/2, the ratio of the reactive moments MA1/MA2 at clamped support A is approximately:
(A) 1
(B) 3/2
(C) 2
(D) 5/2
A spherical galaxy, like M87, which looks like a monster globular cluster, is type
A) ES. B) 0V. C) ES1. D) S0. E) E0.
You go out for a burger with some friends. At the restaurant the waiter serves you your burger on a plate. You pick up the burger with your hand and lift it to your mouth. This action requires about ________ of work
1.0.1 joules 2.1 joule 3.10 joules 4.100 joules