Is it possible for each of three stationary charged particles to exert a force of attraction on the other two?
1.yes
2.no
2
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A _________composite is one that produces no shear strains when stressed in tension.
Fill in the blank(s) with the appropriate word(s).
Photoelectric Effect: The work function of a certain metal is 1.90 eV. What is the longest wavelength of light that can cause photoelectron emission from this metal? (1 eV = 1.60 × 10-19 J, c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ? s)
A. 231 nm B. 14.0 nm C. 62.4 nm D. 344 nm E. 654 nm
Doppler radar can
a. catch speeders. b. measure the speed of a pitcher's fastball. c. detect tornadoes. d. do all of the above.
For which of these scenarios is the wave model of light more convenient to use?
A. refraction of light through a lens B. diffraction of light through a slit C. receiving radio transmissions D. the Doppler shift of light E. All of these choices are correct.