Inside a freely-falling elevator your
A) acceleration is zero.
B) weight is zero.
C) gravitational interaction with Earth is zero.
D) all the above
E) none of the above
Answer: B
Physics & Space Science
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As Earth _______________ on its axis, it produces the cycle of day and night
Fill in the blank(s) with correct word
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In electron capture,
A) a proton turns into a neutron B) a helium nucleus is ejected C) a proton turns into an electron D) a neutron turns into a proton
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Describe the rift valleys on Mars
What will be an ideal response?
Physics & Space Science
Isotope A has a decay constant of 0.723 s-1 and isotope B has a decay constant of 0.514 s-1. Which isotope has a longer half-life?
A) isotope A B) isotope B
Physics & Space Science