Specific Heat: On his honeymoon, James Joule attempted to explore the relationships between various forms of energy by measuring the rise of temperature of water which had fallen down a waterfall on Mount Blanc. What maximum temperature rise would one expect for a waterfall with a vertical drop of 20 m? The specific heat of water is 4186 J/kg ? K.
A. 0.047 C°
B. 0.053 C°
C. 0.064 C°
D. 0.071 C°
Answer: A
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If the radius of the electron orbit in the n = 1 level of the hydrogen atoms is 0.052 9 nm, what is its radius for the n = 4 level? (Assume the Bohr model is valid)
a. 0.212 nm b. 0.045 nm c. 0.716 nm d. 0.846 nm e. 0.920 nm
____________________ appear reddish in color due to the light emitted by the Balmer series of the hydrogen atom
Fill in the blank(s) with correct word
If you were all powerful, how could you make the difference between a planet's night and day temperatures larger?
A) Increase the greenhouse gas content of the planet's atmosphere. B) Increase the tilt of the planet's rotation axis. C) Make the planet rotate more slowly. D) Increase the number of impact craters on the planet.
The atomic mass unit is based on the mass of the ________ atom.
What will be an ideal response?