Consider the data points together with the models in the graph of expansion models. Which model is most strongly supported by the data?

A) accelerating B) critical C) recollapsing D) coasting

Refer to this scenario for the following questions:

A multi-dimensional being reaches down to Earth and pulls you out of the universe. You are then thrown back into the universe at a place and time of the being's choosing, and you are permitted to leave only after you have identified your surroundings. This process is repeated several times. Through a scientifically unexplainable miracle, you are able to survive in every one of the places that you find yourself. In each scenario below, identify your surroundings (and potentially your cosmic era) from among the choices given.


A

Physics & Space Science

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The escape velocity at the event horizon around a black hole is

a. smaller than the speed of light. b. equal to the speed of light. c. much larger than the speed of light. d. irrelevant since nothing (including light) can escape from a black hole.

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A white dwarf will radiate its heat into space and become a black dwarf after a few ____

a. thousands of years b. millions of years c. hundreds of millions of years d. billions of years e. hundreds of billions of years

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A car is traveling counterclockwise along a circular bend in the road whose effective radius is 100 m. At a certain instant of time, the car is traveling due north, has a speed of 10 m/s, and is in the process of increasing that speed at a rate of 1 m/s2. The direction of the car’s acceleration at that instant is most nearly

A. North B. Northeast C. East D. Northwest E. West F. Southwest T. Zero

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When using solar energy systems, why are backup systems necessary to have? Explain

What will be an ideal response?

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