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What is the key piece of evidence showing that the expansion of the universe is accelerating?
The key piece of evidence showing that the expansion of the universe is accelerating is the observation of distant supernovae, which revealed that they are moving away from us at an increasing rate. This discovery, made in the late 1990s, provided strong support for the theory of dark energy driving the accelerated expansion of the universe.
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What is the velocity time graph for a car first accelerating and then decelerating uniformly?
The velocity-time graph for a car first accelerating and then decelerating uniformly would have a positive slope during acceleration, representing an increase in velocity, and then a negative slope during deceleration, showing a decrease in velocity. The graph would form a "V" shape with two straight lines meeting at a point where the acceleration changes to deceleration.
What best explains the influence of Einstein's general theory of relativity?
Einstein's general theory of relativity revolutionized our understanding of gravity, showing that it arises as a result of the curvature of spacetime by matter and energy. It explains phenomena like the bending of light around massive objects, the existence of black holes, and the expansion of the universe. Its predictions have been confirmed by numerous observations and experiments, solidifying its influence on modern physics and our perception of the cosmos.
How is expansion used in a thermometer?
Expansion is used in a thermometer to measure temperature changes. As temperature increases, the liquid (like mercury or alcohol) inside the thermometer expands and rises up the tube, indicating a higher temperature. Conversely, when temperature decreases, the liquid contracts and moves down the tube, showing a lower temperature.
What is the most solid evidence that scientists use to prove the big bang?
The continuous expansion of the Universe, with all Galaxies receding from each other, is the foundation observation. The Big Bang is the computed start point when all lay together. And where physics as we know it is quite insufficient to probe.
What is the significance of the infinite earth theory in understanding the vastness of the universe?
The infinite earth theory suggests that there are countless Earth-like planets in the universe. This theory helps us grasp the immense size and diversity of the universe, showing that Earth is just one of many potential habitable worlds. It challenges our perception of Earth's uniqueness and highlights the vast possibilities for life beyond our planet.
How do scientist explain the origin of the universe?
By thinking of how to do it and showing evidence. muhaaa!
Why do people believe the big bang theory?
Because that is what our standard model of the universe tells us. It is due to the red shift of light showing that our universe is expanding away from a point. Now since we know time moves in a linear fashion, it is not hard to imagine that if we reverse this expansion, the whole universe is brought back to a tiny point commonly known as the "singularity". The real question is "how?" or "why?" this expansion happened.
Is there evidence showing thar there is life on mars?
There is evidence showing that there might have been and could have been at one time in the past, but none showing that there is life there today.
What do th spectra of distant galaxies collected today say about hubbles original findings?
The spectra of distant galaxies collected today support Hubble's original findings by showing that galaxies are moving away from us, indicating an expanding universe. The redshift in the spectra is evidence of this cosmic expansion, consistent with Hubble's discovery of the relationship between distance and redshift.
Is there evidence to say the big bang was true?
Big Bang Cosmology (BBC) is a hypothesis that, many billion years ago, the space of our Universe began to expand and has been expanding at a (fairly) constant rate since then. This hypothesis makes certain predictions about what we would observe today, and alternative to BBC state that we should see something quite different. None of the predictions made by alternatives are seen, and all of the following predictions are observed: 1) Hubble Expansion showing a Universe that was infinitely dense about 13.7 billion years ago. 2) existence and isotropy of cosmic microwave background radiation. 3) ratio of hydrogen to helium in all parts of our Universe. 4) ratio of radioactive isotopes to their decay products showing none of the former being older than about 12 billion years. 5) no nearby quasars. To say there is evidence to say BBC is true, is like saying there is evidence that interplanetary gravity is true.
Why did they make the big bang theory?
Observations through telescopes showed that nearly all far away galaxies are moving away from us, showing that the universe is expanding. Scientists also found microwaves called cosmic background radiation, which is believed to be leftover from the initial flash of the big bang. This evidence along with other evidence points to the universe emerging from a single point.
A graph showing zero slope for the velocity vs. time always indicates that the object is not moving?
No. It always indicates that the object is not accelerating.
How do scientists explain the origin of the universe?
Scientists theorize that the universe began with the Big Bang around 13.8 billion years ago, when all matter and energy were concentrated into an extremely hot and dense point. This point rapidly expanded, leading to the formation of stars, galaxies, and everything we see today.
What is the significance of quantized redshifts in the study of cosmology and the expansion of the universe?
Quantized redshifts are significant in cosmology because they provide evidence for the expansion of the universe. The quantization of redshifts suggests that galaxies are moving away from each other in discrete steps, supporting the idea of an expanding universe. This observation helps scientists understand the dynamics of the universe and its evolution over time.
How does each piece of edvidence support the big bang theory?
All present observational evidence supports Big Bang Cosmology, and (in some cases) rules out the Steady State Hypothesis or a Universe younger than 9000 years. This evidence includes: 1) A Hubble Expansion Constant that shows that all of our Universe being was packed into a dense state about 13.7 billion years ago. 2) An isotropic CMBR with a spectrum identical to a black-body of temperature 2.7 K -- EXACTLY as predicted. 3) A Universe of about 90% hydrogen and 10% helium -- again, as predicted. 4) Young galaxies being seen only far away from us, and old galaxies being seen only close to us. 5) No white dwarf stars being seen that are older than about 12 billion years. 6) The ratio of radioactive elements to decay products showing the former can not have existed more than about 12 billion years ago. Either "the whole Universe was in a hot, dense state; and nearly 14 billion years ago expansion started," or someone has tricked us into seeing such a Universe -- no other possibilities exist.
How do you change your finisher on WWE 2010?
by showing the finisher to the wwe universe on one of wwe wrestlers
How do you draw a diagram showing the motion of a satellite around earth label the forces acting on the satellite is the satellite accelerating?
You get something to draw with and something to draw on and DRAW
