Which one of the following quantities is the smallest unit of thermal energy?
A) calorie
B) kilocalorie
C) Btu
D) joule
D
Physics & Space Science
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The wavelength of the emitted photon if an electron in the hydrogen atom makes a transition from the n = 2 state to the ground state is closest to which of the following values?
(c = 3.0 × 108 m/s, h = 6.626 × 10-34 J ? s, 1 eV = 1.60 × 10-19 J) A) 122 nm B) 203 nm C) 243 nm D) 389 nm E) 411 nm
Physics & Space Science
Downloadable media utilizes the HTTP protocol.
Answer the following statement true (T) or false (F)
Physics & Space Science
Work is defined as force times
a. distance. b. time. c. parallel distance. d. perpendicular distance.
Physics & Space Science
A radio wave signal, which transmits at a frequency of 5.64 MHz, has what wavelength? (c = 3.00 × 10^8 m/s)
a. 532 m b. 106 m c. 53.2 m d. 167 m e. 28.3 m
Physics & Space Science