What range of astronomical distances can we currently measure using Hubble's law?
What will be an ideal response?
From about 10 million light-years to more than 10 billion light-years
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It is possible that life exists on orphan planets, even though they do not orbit a star
Indicate whether the statement is true or false
Suppose a uniform electric field of 4 N/C is in the positive x direction. When a charge is placed at and fixed to the origin, the resulting electric field on the x axis at x = 2 m becomes zero. What is the magnitude of the electric field at x = 4 m on the x axis at this time?
A. 0 B. 1 N/C C. 2 N/C D. 4 N/C E. More information is needed to find the resulting field magnitude at this position.
Explain two methods that could be used to find the spring constant of a spring experimentally
_____ is the principal means of energy transport in the interiors of most stars
A) Conduction B) Radiation C) Evaporation D) Advection