A photon whose energy is 8.00 × 10^?15 J is scattered off an electron at a 90° angle. What is the wavelength of the scattered wave?
a. 2.73 × 10^?11 m
b. 2.25 × 10^?11 m
c. 2.50 × 10^?11 m
d. 2.40 × 10^?12 m
e. 2.48 × 10^?11 m
a
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In a well in an unconfined aquifer, the highest level that water can rise to is
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