A 1.00-kg platinum-iridium cylinder is 26.0 mm in height and 40.0 mm in diameter. What is the density of the material?
a. 30.6 g/cm3
b. 29.8 g/cm3
c. 31.2 g/cm3
d. 10.0 g/cm3
e. 59.6 g/cm3
a
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(a) What is the amplitude of vibration? (b) At what location are the kinetic energy and the potential energy of the system the same? What will be an ideal response?
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Indicate whether the statement is true or false
A system of 8 electrons, 18 protons, and 4 neutrons has a net charge of
a. 16.0 × 10^-19 C. b. –16.0 × 10^-19 C. c. 22.4 × 10^-19 C. d. 10.0 × 10^-19 C. e. –22.4 × 10^-19 C.
A layer of kerosene (n = 1.45) is floating on water (n = 1.33). For what angles of incidence at the kerosene-water interface will light be totally internally reflected within the kerosene?