George Washington learned valuable knowledge of the colonial interior when he worked as what?
Ans: surveyor
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Molecular Rotation: Estimate the maximum rotational energy (in electron-volts) for a free and freely-spinning diatomic hydrogen molecule in the L = 2 quantum state. The equilibrium separation for the atoms in the H2 molecule is 0.075 nm. (1 eV = 1.60 × 10-19 J, mproton = 1.67 × 10-27 kg, h = 6.626 × 10-34 J ? s)
A. 0.011 eV B. 0.022 eV C. 0.033 eV D. 0.044 eV
The length of the telescope is 1.60 m and it has a magnification of 60.0. What is the focal length of the objective?
A) 60.0 cm B) 157 cm C) 100 cm D) 128 cm E) 96.0 cm
Mercury presents the same side to the Sun
A) all the time, just like our Moon. B) every 12 hours. C) twice every orbit. D) every other orbit. E) every third orbit.
If you think of a battery as an electric charge ‘pump,' the battery voltage is analogous to
a. rate of fluid flow b. pressure c. flow velocity d. water e. none of the above