If a star were moved 10 times farther away, its apparent magnitude would drop by five magnitudes
Indicate whether the statement is true or false
TRUE
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The fact that desert sand becomes very hot in the day and very cold at night is evidence that sand has a
A) low specific heat capacity. B) high specific heat capacity. C) none of the above
Estimate the rotational energy (in eV) for a diatomic hydrogen molecule in the l = 2 quantum state
(The equilibrium separation for the H2 molecule is 0.074 nm.) (1 eV = 1.60 × 10-19 J, h = 6.626 × 10-34 J ? s, h = 1.055 × 10-34 J ? s, mH ? mproton = 1.67 × 10-27 kg) A) 0.026 eV B) 0.046 eV C) 0.055 eV D) 0.032 eV E) 0.011 eV
Two boys searching for buried treasure are standing underneath the same tree. One boy walks 18 m east and then 18 m north. The other boy walks 16 m west and then 11 m north. Find the scalar product of their net displacements from the tree
What will be an ideal response?
Rank the launch angles for the five paths in the figure below with respect to the time of flight, from the shortest time of flight to the longest