Four identical particles (mass of each = 0.24 kg) are placed at the vertices of a rectangle (2.0 m × 3.0 m) and held in those positions by four light rods which form the sides of the rectangle. What is the moment of inertia of this rigid body about an axis that passes through the center of mass of the body and is parallel to the shorter sides of the rectangle?
a. 2.4 kg×m2
b. 2.2 kg×m2
c. 1.9 kg×m2
d. 2.7 kg×m2
e. 8.6 kg×m2
B
You might also like to view...
Kepler's laws of planetary motion were _____ because he could not provide an explanation for his conclusions
a. unnatural b. empirical c. hypothetical d. principles e. assumptions
What is the galactic fountain model?
A) the idea that there is a lot of interstellar water vapor B) the theory that the Milky Way is a spiral galaxy and looks like a whirlpool from above C) the theory that hot, ionized gas blows out of the galactic center like a jet or fountain D) the theory that hot, ionized gas blown out of the galactic disk and into the halo by superbubbles cools down and falls back into the disk E) none of the above
For a certain metal, light of frequency 7.24 × 10-14 Hz is just barely able to dislodge photoelectrons from the metal
(h = 6.626 × 10-34 J ? s, 1 eV = 1.60 × 10-19 J, e = 1.60 × 10-19 C) (a) What will be the stopping potential if light of frequency 8.75 × 10-14 Hz is shone on the metal? (b) What is the work function (in electron-volts) of this metal?
Suppose that you use a super-fast computer to measure a system’s macropartition a billion times a second. What is the approximate probability of the least-probable macropartition that you might plausibly see in your lifetime? Select the closest response
A. 1 chance in a million (106) B. 1 chance in a billion (109) C. 1 chance in a trillion (1012) D. 1 chance in 1015 E. 1 chance in 1018 F. 1 chance in 1021