Two masses m1 and m2, with m1 < m2, have equal kinetic energy. How do the magnitudes of their momenta compare?
1.not enough information
2. p1 < p2
3. p1 = p2
4. p1 > p2
2
Physics & Space Science
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The Bohr theory does not predict that:
a. the approximate radius of a hydrogen atom is 5.3 × 10^-11 m. b. hydrogen atoms will give off the lines from the series ending in the n = 2 state. c. the ground state of hydrogen is spherically symmetric. d. it requires 13.6 eV to ionize hydrogen.
Physics & Space Science
The most widely accepted system of measurement is the metric system
a. True b. False Indicate whether the statement is true or false
Physics & Space Science
The type of nuclear reaction taking place in stars is
a. cold fusion. b. fusion. c. fission. d. beta decay.
Physics & Space Science
The Moon always keeps the same side facing Earth
a. True b. False Indicate whether the statement is true or false
Physics & Space Science