Four identical particles (mass of each = 0.40 kg) are placed at the vertices of a rectangle (2.5 m × 4.0 m) and held in those positions by four light rods which form the sides of the rectangle. What is the rotational inertia of this rigid body about an axis that passes through the mid-points of the shorter sides and is parallel to the longer sides?
a. 2.2 kg/m2
b. 2.8 kg/m2
c. 2.5 kg/m2
d. 3.1 kg/m2
e. 1.6 kg/m2
c
You might also like to view...
A single concave spherical mirror produces an image which is
A) always virtual. B) always imaginary. C) always real. D) real only if the object distance is less than f. E) real only if the object distance is greater than f.
Spectral Series: What is the value of n in the Balmer series for which the wavelength is 410.2 nm.
A. 4 B. 5 C. 6 D. 7 E. 9
Suppose that hydrogen, rather than iron, had the lowest mass per nuclear particle. Which of the following would be true?
A) Nuclear fusion could not power stars. B) Stars would be brighter. C) Stars would be less massive. D) All stars would be red giants.
Parallax is evident when you view objects
A) with one eye. B) with both eyes. C) with one or both eyes. D) in a completely dark room.