Which technology was used by the Event Horizon Telescope project to obtain the first image of a black hole?
A) gravitational wave detection
B) adaptive optics
C) interferometry
D) high-speed time monitoring
C) interferometry
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Predict a value for thermal conductivity of liquid ethyl alcohol at 300 K. Use the equation suggested by Bridgman’s equation (2-6).
The second law of thermodynamics states that
A) energy cannot be created or destroyed B) matter cannot be crated or destroyed C) the energy in a system undergoes changes that lead to increasing disorder D) the energy in a system undergoes changes that lead to increasing complexity
If the force on an object is in the negative direction, the work it does on the object must be
A) negative. B) positive. C) The work could be either positive or negative, depending on the direction the object moves.
Distinguish between the terms slit width and slit separation