Internal energy is a _____________variable.
Fill in the blank(s) with the appropriate word(s).
state
Physics & Space Science
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Atoms in crystals are typically separated by distances of 0.10 nm. What KE must an electron have, in eV, in order to have a wavelength of 0.10 nm?
What will be an ideal response?
Physics & Space Science
The frequency of the second hand on a clock is
A) 1 hertz. B) 1/60 hertz. C) 60 hertz.
Physics & Space Science
You shout at a cliff, and hear your echo in 2 seconds. If the speed of sound in the air is 340 m/s, the distance of the cliff from you is __________
Fill in the blank(s) with correct word
Physics & Space Science
Galileo used a telescope to discover
a. spots on the Sun. b. craters on the Moon. c. moons around Jupiter. d. moon-like phases of Venus. e. all of above.
Physics & Space Science