I WILL GIVE BRAINLIST TO CORRECT ANSWER Examine the symbols below:

Four schematics are shown. Each symbol shows a cell schematic with the plus and minus symbols. Symbol A has the pattern: long, short, long, and short lines. Symbol B has the pattern: long, short, long, short, long, and short lines. Symbol C has the pattern: long and short lines. Symbol D has the pattern: long, short, long, and short but rotated horizontally.

Which image represents a three-battery cell in a circuit? (2 points)

Group of answer choices

Symbol A

Symbol B

Symbol C

Symbol D

Ahockey puck sliding along frictionless ice with speed v to the right collides with a horizontal spring and compresses it by 3.0 cm before coming to a momentary stop.

The center of a long frictionless rod is pivoted at the origin, and the rod is forced to rotate in a vertical plane with constant angular velocity \omega. write down the lagrangian for a bead of mass m threaded on the rod, using r as your generalized coordinate, where r, \phi are the polar coordinates of the bead. (notice that \phi is not an independent variable since it is fixed by the rotation of the rod tobe \phi = \omega * t) solve lagrange's equation for r(t). what happens if the bead is initially at rest at the origin? if it is released from any point ro > 0, show that r(t) eventually grows exponentially. explain your results in terms of the centrifugal force m* \omega ^2 *r.

Ameteorite strikes earth and forms a crater, decreasing the meteorite's momentum to zero. does this phenomenon contradict the conservation of momentum? choose as many answers as you think are correct.