How does dark energy affect the expansion of the Universe?
What will be an ideal response?
Dark energy is accelerating the expansion of the Universe, making it likely that it will expand forever.
Physics & Space Science
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In a neutron star, the protons and electrons are fused together, leaving only neutrons
Indicate whether the statement is true or false
Physics & Space Science
Generally, the number of neutrons present in nuclei that are fission fragments is ________ the number of neutrons of corresponding nuclei of stable isotopes.
A. equal to B. greater than C. less than
Physics & Space Science
A steel ball has a mass equal to 5 kilograms. What is the ball's weight?
Physics & Space Science
The position of an object at equal time intervals is shown below:
Which graph below correctly represents position versus time for this object?
A.
B.
C.
D.
E.
Physics & Space Science