The simplest scope design, by Isaac Newton, uses only a primary mirror
Indicate whether the statement is true or false
FALSE
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Starburst galaxies are invisible in the infrared range
Indicate whether the statement is true or false
Will Mars ever appear to the unaided eye as large as the Moon at closest approach? Explain
What will be an ideal response?
How is erosion different from weathering?
A) Erosion is the process of removing sediment from weathered rock. B) Erosion produces more sediment than weathering. C) Erosion produces less sediment than weathering. D) Erosion and weathering are different ways of saying the same thing.
The instability of uranium-235 compared to uranium-238, along with the relative stability of hydrogen compared to tritium, shows that the stability of a given nucleus depends upon
A. adding or subtracting neutrons, which can change a stable isotope into an unstable isotope. B. the number of electrons in the nucleus. C. the mass: heavier nuclei are always less stable. D. the speed of electrons orbiting the nucleus: more mass means more gravitational pull.