Three masses are located in the x-y plane as follows: a mass of 6 kg is at (0 m, 0 m), a mass of 4 kg is at (3 m, 0 m), and a mass of 2 kg is at (0 m, 3 m). Where is the center of mass (or center of gravity) of the system?
A) (1 m, 2 m)
B) (2 m, 1 m)
C) (1 m, 1 m)
D) (1 m, 0.5 m)
E) (0.5 m, 1 m)
D
You might also like to view...
What is the magnetic force on a 2.0-m length of (straight) wire carrying a current of 30 A in a region where a uniform magnetic field has a magnitude of 55 mT and is directed at an angle of 20° away from the wire?
A. 1.5 N B. 1.3 N C. 1.1 N D. 1.7 N E. 3.1 N
The room-temperature electrical conductivity of pure silver is 6.8×107 (?·m)-1 , and for pure copper the electrical conductivity is 6.0×107 (?·m)-1 . An alloy is made of 40 vol % copper and 60 vol % silver. Copper and silver form a eutectic phase diagram, with no solubility of copper in silver or of silver in copper at room temperature. Predict the room-temperature electrical resistivity of an alloy made from these materials.
What will be an ideal response?
In a solar cell the light initially passes through the n-type silicon to reach the pn-junction where it is desired that the light absorption occur. If we want at least 90 percent of the light entering a silicon solar cell to reach the pn-junction region, what is the maximum thickness of the n-type material for 0.6 ?m light assuming pure silicon?
What will be an ideal response?
Compared with Newton's theory of gravity, Einstein's theory is
A) an exception to the correspondence principle. B) in accord with the correspondence principle. C) neither of these