The diagram below shows five cylinders, each cylinder rotating with constant angular velocity about its central axis. The magnitude of the tangential speed of one point of each cylinder is shown, along with each cylinder's radius and mass. Which cylinder has the largest angular momentum?
a.
b.
e
Physics & Space Science
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Stars are powered by ________
Fill in the blank(s) with correct word
Physics & Space Science
When an 6-kg object increases its potential energy by 540 J, approximately how has its position changed?
a. It has risen vertically 9 m. b. It has fallen vertically 9 m. c. It has risen vertically 90 m. d. It has moved horizontally 90 m.
Physics & Space Science
What is the wavelength of the line in the Balmer series of hydrogen that is comprised of transitions from the n = 5 to the n = 2 level? (R = 1.097 × 10^7 m?1 and 1 nm = 10?9 m)
a. 304 nm b. 434 nm c. 476 nm d. 95 nm e. 333 nm
Physics & Space Science
An electron is sitting on a pinpoint having a diameter of 2.5 ?m. What is the minimum uncertainty in the speed of the electron?
Physics & Space Science