Questions and Answers of Mechanical Engineering

Cite three main advantages of fission power. Cite four main drawbacks?
Light does bend in a gravitational field. Why isn't this bending taken into consideration by surveyors who use laser beams as straight lines?
Do you age faster at the top of a mountain or at the mountain's base?
In the astronomical triangle shown in Figure 36.14, with sides defined by light paths, the sum of the interior angles is greater than 180°. Is there any astronomical triangle whose interior angles
From our frame of reference on Earth, objects slow to a stop as they approach black holes in space because time gets infinitely stretched by the strong gravity near the black hole. If astronauts
Do binary stars (double-star systems that orbit about a common center of mass) radiate gravitational waves? Why or why not?
Given the possible sources of gravitational waves in the universe, would you expect them to have short wavelengths or long?
Current findings suggest that the universe is flat. What is an implication of this finding?

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