Aboard a vessel, dividing the sum of the vertical moments by total weight yields the vesse
A.height of the center of gravity
B.vertical moments
C.righting moments
D.inclining moments
A.height of the center of gravity
B.vertical moments
C.righting moments
D.inclining moments
A、
B、
C、
D、
A uniform rod with lengthand masscan rotate about a horizontal axis from one end. A bullet with massstrikes the free end of the rod with a speed. The angular velocity of the rod after striking is
A、
B、
C、
D、
A、
B、
C、
D、
Four closed surfaces,through, together with the charges,, andare sketched in the following figure. (The colored lines are the intersections of the surfaces with the page.) Find the electric flux through.
A、
B、
C、
D、0
Positive charge Q is distributed uniformly along the-axis fromto. A positive point charge q is located on the positive-axis at, a distanceto the right of the end of Q. Calculate the force that the charge distribution Q exerts on q.
A、
B、
C、
D、
Assumingat, the electric potential at the center of a conductor sphere with charge Q and radius R is
A、
B、
C、
D、
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