Which of the following is explained by general relativity? A. How massive stellar objects can form a lens. B. Why moving muons decay more slowly than stationary ones C. Why atomic clocks tick more slowly when in motion D. Why no object can move faster than light through space-time
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Answer 1
Answer:
The correct answer is both c and d. In general relativity, it explains why atomic clocks tick more slowly when in motion and why no object can move faster than light through space-time. The theory of relativity was formulated by Albert Einstein.
At height h above the surface of Earth, the gravitational acceleration is What is h? Note: The radius of Earth is 6380 km.
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The acceleration of gravity is inversely proportional to the square of the distance from Earth's center.
The acceleration of gravity is 9.8 m/s² on the Earth's surface ... 6380 km from the center.
If the acceleration of gravity at 'h' is 4.9 m/s² ... 1/2 of what it is on the surface, then the distance from the center is
(6380 x √2) = 9,023 km (rounded) ,
and 'h' is the distance above the surface
= (9,023 - 6,380) = 2,643 km (rounded) .
What kind of energy do most electric inventions give off?
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Answer:
Electricity?
Explanation:
What force keeps an object moving in a circle
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A centripetal force does that.
What is the rms Voltage value and why we use it ?
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Suppose that you have an alternating current generator. If you want to get the same result with a direct current (DC) generator, you have to set the voltage to the RMS (Root Mean Square) value of the (AC). In short, RMS is the value of the direct current voltage that is used instead of an alternating current.
Define nuclear energy
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Answer:
Nuclear energy is the energy stored in atoms that can produce electricity.
Hope that helps. x
An aiplane is traveling at 500 mph for 3.5 hours. how far did the plane travel